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HomeMy WebLinkAboutLegal Opinion - Buccella Engineering Builders - Odor Problem r✓ OFFICE OF i�i1 CITY ATTO'RL EY I OPINION 76 v'0. j- 47 i Novembe-r 19, 1976i SUBJECT: City Liability - ,Issuance of Building Permits REQUESTED BY: Michael Zambory, Cit;T Engineer PREPARED BY : Don P. Bonfa, City Attorney James Georges, Deputy City Attorney QUESTIO14: Does an action for nuisance lie against the City for. is:uing a building; permit where subsequently a noxious odor emanates from a development which has uncovered pockets of an oil dump site? ANSIER: i3o . PAC:.GROUivD: The City has issued a buildin permit to a developer for an area which, it is later discovered, contains pockets of a. dump site used . by oil companies , and the private owner/developer has excavated a mini mountain emanating; noxious odors. The Cite also has public rights-of-;aay in the subdivision, . .for example, cul-de- sac streets, water lines and sewer lines . Adjacent property owners claim that the use of their land has been interferred with because of the noxious odors . DISCUSSIOid: If liability lies at all for the noxious odors , it would lie against the .private property owner and developer and not against . the City. There has been a previous memorand.uri opinion dated September 23,' 1976 which states that the City never becomes exposed to liability by the riere issuance of a permit . It takes an active or a passive negliL;ent act by a city eriployee to subject tho City to liability. The City is i:mnune from liability for erroneous or negligent issuance of a building; permit . California C7overnrlent Code Section 818 . 11; Friedr.ian v. City of Los Angeles 1975 App, 125 Cal Rptr 93 . Issuance of: building; permits does not render the public entity liable . It does not make the municipality an insurer that the permittee complies with all applicable regulations , nor does it render the municipality liable for the pern.ittee ' s negli`;ence . �"1 Breiner v. S. & P . Home Builders, 536 F . 2d 27 (1976) . OJ.'J'IC1� OJ.,' 'J.'HE CITY A'.L"iUJt;!1-1Y 1\1ovei!iher, _L'.g, 1975 OPINION 140 . 76- 7 Pa e Two Noxious odors can be a nuisance but the party liable is the owner of the property frori where the odors emanate . The issuance of a building permit is a ministerial act, and if refused without good cause, the builder would undoubtedly obtain a writ of mandate ordering the City to issue the builuin,; permit . The following cases may be helpful in understanding the theory of nuisance : The" emission of injurious fumes from a smelting plant constitutes .a nuisance . People v. Selby Smelting and read, (1912) 163 Cal 84, 124 P 692 . Nuisance action against owner of property; a person who ;=s not the creator of a nuisance must have notice or icnowledge of it before he can be made liable for resulting injury . Civil Code Section 3483, Reinhard v. Lawrence Warehouse Co. (19 1 ) App, 107 P2d 501. A -overnmental unit is liable for creating and maintaining a nuisance. Civil Code Section 3479. An action against sanitary district for maintaininc a nuisance; T'Julloy V . Sharp Park Sanita. ,y District (1958) ApP, 330 P2d 441.. A permit from the State Board of Health granting a. cite the ri7-ht to discharLe. sewerage into a rive= does not give it the right to pollute the waters thereof. People v. Reedley (1924 ) 66 Cal App 4o9, 226 P 4o8 . A license from a city authorizing one to maintain a steam engine does not allow him to operate the engine in such a manner as to create a nuisance . Sullivan v. Royer (1887 ) 72 Cal 248, 13 P 655 .. A license, permit or franchise does not authorize creation or maintenance of a nuisance, which rule applies not only to private nuisances but also to public ones . Taton v. ilalimm (1933) 217 Cal 362, 18 P2d 673 . C01 C.LUSIOIJ: The City is not liable for issuance of a buildinL perml-t in an area which later is discovered to have noxious odors emanating; therefrom.. / DON P P . B0P1F11 JAril S GI ORGJJS r t/ City Attorne� '� Deputy City Attorney v DPB:JG:cs cc : City Administrator Building Director Public Works Directo . t S i HARBOR BLUFFS DEVELOPMENT 5142 Warner Ave.,No.205 FRANK BUCCELLA Huntington Beach,CA 92649 Residence(714) 540.8442 Telephone(714) 846-1328 I/IV October 14 , 1976 City of Huntington Beach SUBJECT : Curb Gutter Tract Post Office Box 190 #9235 Huntington Beach, CA 92648 Attention: Floyd G. Belsito, City Administrator Dear Mr. Belsito : I agree that we will not hold the City liable for allowing us to proceed with curb and gutter work until at such time the Government Agencies agree that the odoriferous materials must be removed . I hereby waive any claims , rights , or cause of action against the City, its officers and employees ; and I hold the City harmless from any liability by reason of the City' s consent for me to install curb and gutters at this approved described site without prior approval of the Orange County Health Department in the event such curb and gutter must be removed in order to excavate odoriferous materials . Respectfully, Frank Bucc.ella September 25, 1976 To: Mr. Frank Buccella Buccella Engineering Builders 'From: Kenneth E. Maxwell, Ph.D. Consulting Toxicologist Subject: Toxicological Hazards - Supplement to Report of !H September 24, 1976. My study of the toxicological characteristics of the emanations from the construction site, as given in my report dated September 24, 1976, indicates that there is no hazard to the health of residents of the surrounding community, even though discomfort may be experienced from the high odor-pro- ducing properties of the material, and at extremely dilute concentrations in air. This supplemental report relates to the comfort and safety of workmen, who will be in excavations and trenches in close contact with the source and, consequently, in con- centrations several times higher than in the vicinity sur- rounding the actual work area. This report is also prompted by the fact that the following have transpired since the earlier report: (1) I have received a copy of the analytical report from West Coast Technical Service Inc. -, which contains information not previously available, (2j I have had a chance to inspect the development site and surroundings more thoroughly than on my first visit, and (3) I have examined a specimen of the offending soil under the microscope. The West Coast Technical Service report dated September 22, 1976, shows the presence of the following substances not previously mentioned: .hydrogen sulfide, -sulfur dioxide, and (assumed to be present due to odor) carbonyl sulfide. - Comments on the toxicity and hazards of these compounds are as follows: H d��ro en__ sulfide is a colorless , flammable gas , with an odor resembling rotten eggs , and can be detected b the human nose at a concentration of 2 pb (parts per billion. The USOS (U. S. Occupational Standard gives- a ceiling concentration of 20 ppm, and a peak concentration of 50 ppm. The Ambient Air Quality Standard of the California Air Resources Board is 0.03 ppm .for l hour. Where workmen are- concerned, its- toxic nature indicates -the need- to -lean -toward-_the side- --of caution,- -since it can -be--fatal -more quickly than a similar concentration of cyanide. West Coast' s analysis gave no indication of concen- tration, and since Truesdail' s limit of detection was 10 ppm, the findings leave (pen the possibility of significant quanti- ties.-of - -hydrogen sulfide. My -opinion, however, is that the contribution of hydrogen sulfide is low. r t Mr. Frank Buc la - page 2 Carbonyl sulfide (carbon oxysulfide) was suspected by odor only. The material is an odorless, volatile liquid, with odors being caused by impurities. The lowest reported lethal concentration to laboratory animals by inhalation is 2,900 ppm, which places it among the less toxic materials . Hydrocarbons were mentioned in my previous report, but the concentration reported by Truesdail (90 ppm) justifies discussing this constituent in more detail. The hydrocarbons detected were aliphatic components of petroleum in the gaso- line range. These compounds are considered to be of relatively low toxicity. For example, the USOS for heptane (C ) is 500 ppm, and this is taken generally to be the maximum allowable concentration of gasoline. However, where workmen are exposed at the source' of the fumes, hydrocarbons may contribute to their discomfort, and could add to the toxic effects of other materials that may be present. Fire and explosion hazards depend on the concentration of flammabI—egases in susceptible areas on the construction site such as trenches excavations and pipes. The following substances in the malodorous fumes are flammable, and can be a fire or explosion hazard under certain conditions: methyl mercaptan, methyl sulfide, hydrogen sulfide, carbonyl sulfide (if present) , and hydrocarbons in the gasoline range. The concentration of these materials is apt to be too low to be dangerous, but there -is -not--- enough imformation on the concen- trations of the various components in the trenches ' to say whether there is or is not a potential explosion hazard. As a precaution, I recommend that workmen in trenches and ex- cavations be advised to refrain from smoking. I assume there will be no need for welding. Comfort and sa�fet� of workmen. People digging or working in the o ending SOI -may experience acute discomfort from- the odor while in _close proximity-to --the =source of the -fumes .- - Gas masks =will provide protection:- Also,-- confirming .my -verbal statement-,- workmen should be told to wear- gas masks where ex- posed to toxic fumes in closed spaces or areas such as trenches where fumes .-cannot dissipate rapidly. - It is accepted practice among sewer workers, spray operators, and others who work in confined or semi-enclosed--spates, to -use the precautionary measure of wearing gas masks, even though danger to the communi- ty in surrounding areas is not a problem. Anyone familiar with industrial safety practices will -accept -this simple -precaution. Or�i in-of odor My---initial -opinion was. that- the offending material-was of natural organic .origin, based on the . elevation of the site -near sea level, the presence of peat, and the nega- tive laboratory report as to refinery waste. However, the possi- bility._that the material-had a refinery origin cannot be ruled out. _ Examination .of the -.material under the microscope showed that--it did not contain- diatomaceous earth; but -had the appear- r Mr." Frank Bucct�la - page 3 ance of finely divided clayy. The sample dispersed in water slowly. The material may be discarded filter cake from the refining__of .casinghead__gasoline. (natural _gasoline) or straight .run gasoline. In any case, since there was no odor before the offending material was uncovered by excavation and trenching, there is no reason to think there will be a problem after the overburden of earth is replaced. Respectfully submitted, Kenneth E. Maxwell, Ph. D. Toxicologist Addendum: Sulfur dioxide, found to be present by West Coast' s analysis is a gas with a very pungent odor, and is highly irritating to mucous membranes and the respiratory tract. The USOS has been set at 5 ppm. Since Truesdail' s limit of detection is 10 ppm, the concentration, theoretically, could be at a dangerous level. However, the gas is so irritating that it serves as its own warning agent. It is unlikely that sulfur dioxide- is a significant factor in producing .the offensive odor, nor-is it apt' to be a hazard to workmen at the site. K.E.M. September 24, 1976 To: Mr. Frank Buccella From: Kenneth E. Maxwell, Ph.D. Consulting -Toxicologist Subject: Toxicological Hazards, Development off Warner Avenue, Huntington Beach, California The evidence, based on an examination of the site, to- gether with analytical results made available to me, is that the unpleasant odor emanating from the construction site has a natural origin. The problem appears to arise from organic material laid down in a marsh or estuary that formerly existed in the area; but later became covered with a layer of soil. Removal of the overburden exposed layers containing the partial- ly decomposed organic matter, releasing some of the gaseous and volatile decomposition products to the atmosphere. There is no substantial evidence of petroleum or other waste material except decayed vegetation and natural deposits of sediment. It should be understood- before .appraising -the comments -- in this report that toxicologists make -a distinction between "toxic or poisonous" and -"dangerous or hazardous." The reason for this is- that very few things we encounter in the environment are completely non-toxic or' .non-poisonous under all conditions . For example, oxygen is non-hazardous in its normal atmospheric concentration,- but -if breathed in pure .form for a long period of--time,= it becomes- dangerous -and can. be lethal--by causing a condition - called hyperoxia. Thus, the<-.danger of a toxic -sub- stance depends on a number of -conditions , usually the concen- tration being the most important one in determining the degree of hazard. Based on the results given in an -analytical report by Truesdail Laboratories, dated September 22, 1976, and a report by -William Hartge of a verbal report from Dr. - Fisher of West Coast% Technical Services on September 21, 1976, substances==wer_e- detected .-that_-probably account-for nearly all- the -bad- odor -_ My --comments .on the potential-danger to the health of nearby residents are as follows: Methyl _merca tan -(methanethiol) is a gas at ordinary temperature--an - pressure. The--mer-captans are notoriously smelly materials, one of them being a constituent of the malodorous secretions of skunks. This- and closely related mercaptans -have -odors that are detectable at extremely low concentrations in air. For example, it was determined that i Mr. Frank Bucc, a - page 2 ethyl mercaptan, the nearest relative to methyl mercaptan, can be smelled at a concentration of one volume of the mer- captan in 50 billion parts by volume of air. Since the ob- noxious- odor increases -with decreasing molecular weight, methyl mercaptan would produce an odor at an even more dilute concen- tration, well below the toxic level. Therefore, atmospheric concentrations of the mercaptans in the open are not necessarily hazardous, even though the odor may be oppressive, and it is only when the odor becomes overpowering that the concentration would ordinarily be high enough to be cause for alarm. However, -the lower weight mercaptans, such as methyl mercaptan, are toxic, and can pose health hazards in industries where workers are exposed con- tinuously to the gas: The USOS (U. S. Occupational Standard) for methyl mercaptan in air a CL (ceiling concentration) of 10 ppm (parts per mil5ives . The degree of hazard to health from atmospheric methyl mercaptan can be best understood in perspective by compari- son with the principal toxic ingredients of automobile ex- haust and its by-products: hydrocarbons, carbon monoxide, nitrogen dioxide, and ozone. H drocarbons are the least toxic of the group, and need not be discussed in this context. The danger of carbon monoxide is well known. The U. S. Occupa- tional -StanncarrTc -is -ppm in air, while the California Air Resources Board standard- for 12 hours of exposure is 10 ppm. Nitrogen dioxide is more toxic, having a USOS :of 5 ppm, and a aationaT_9_tanUard for air pollution of 0.05 ppm, average annual concentration. Ozone is the most toxic of the main vehicular by-product poTlutants, having been assigned a USOS of 0. 1 ppm .and a California Standard for air pollution of 0. 1 ppm --for only one-.hour exposure-. These--values - give an indication of the relative-hazard of methyl- mercaptan, which has been assigned a USOS of---10 -ppm,--roughly-- in -between the standards=for .carbon monoxide-- and-nitrogen.-:dioxide, - but=- having-the--advantage of--an._extremely-disagreeable =odor as- a warning flag. Meth I sulfide.- (dimethyl sulfide) is a colorless liquid at or id�nary temperature and pressure, but is fairly volatile, with- a boiling-point of- about 36°.0 (about 97°F) , and- has _a disagreeable_.odor. Data on toxicity are limited with respect to inhalation- hazards .- By in estion, -toxicity evaluations on laboratory rats gave an LD50 comparable to a median lethal dose) _of.-.3, 300 mg/kg . (milligrams per kilogram) , a value that is-considered-to__indicate very ..low .toxicity.- - For example, an- average-lethal dose of -aspirin would be- about-half -that quantity. Intangible effects on health.` Bad odors may be not only toxic but annoying as weTT, a�cn --in the present case annoyance Mr. Frank Buccel - page 3 seems to be the most troublesome aspect. However, . it is well to recognize that annoyance, in itself, can cause headaches and •even nausea. When these symptoms are already. present, bad odors could exacerbate the condition, very .largely through suggestion alone. Aspirin for headaches is the largest over-the-counter medicine in terms of volume, and it would be surprising if a number of people living within nose-shot were not in need of an analgesic, odor or no odor. Any action that reduces the annoying effect of the bad odor could be expected to alleviate the problem. There- fore the spraying of perfume was a good shot in the dark. If an effective deodorant can be found, it would be worth trying over a sufficient area to determine its efficacy. Potential problems . If corrective measures that are taken during the con- struction phase of the development turn out to be inadequate to prevent future emanations of smelly gases, trouble could come from three sources: odors, toxic effects, and fire -or explosion hazards. Gases that are heavier than air tend to accumulate in buildings, and can reach dangerous levels of concentration. Since the principal malodorous gases known to be present, methyl mercaptan and methyl sulfide, possess all three undesirable properties, consideration must be given to any precautions .that can be taken against future emanations . H dro en sulfide, if produced by decomposition of other sulfides, ssiC6Ty_'Uy disturbances or- changes in soil conditions, would pose similar problems . Non-problems. Hydrocarbons, such as those reported in the analytical results, ave generally low toxicity; -and would require much higher--concentrations -to comprise. a health hazard. However, if -additional findings show an increase in hydrocarbons-1 -- the- possibility of future emanations of --the lower molecular weight--hydrocarbons- collecting in enclosed spaces such as buildings - and utility trenches . should be studied with a view toward evaluating fire and explosion hazards . Hydrogen- sulfide and:-.carbon disulfide- -are both smelly and toxi- -`c,, but since -the fin3 ng. was: negative, a discussion of their hazardous nature is not needed. The negative report on chlorinated hydrocarbons also- obviates -an evaluation of these- materia s . References -=and- documentation .can be furnished if you wish to have Tem. RECOMMENDATIONS (some of which.--have been done or may be in progress) . 1. Use deodorants during times of high odor levels if any can be found that are demonstrated to be effective. r Mr. Frank Buccei _ - page 4 2. Remove as much of the odor-producing soil as practi- cal, that remaining to be covered with a seal of fresh soil. Take core samples if necessary to determine the depth and extent of the offending layer. 3. Obtain input from as many qualified sources as feasible concerning the following: a. The depth and kind of soil needed to form a non-porous, permanent seal over the odiferous stratum. It would be possible to make usefulcbterminations in the labora- tory with straightforward tests, but the time required would probably not be acceptable in view of the urgent need for decisions . b. Whether there is any possibility of the malodorous gases being given off at or immediately surrounding the building sites . If so, take corrective measures as in the other areas . 4, If the odor in the general area does not subside, have air samples taken at the site to determine concentrations, perhaps through the cooperation of the air pollution control district. 5. If it is necessary for workmen to work -in trenches or other depressions in areas where the odor of gases is evident, concentrations should be determined, 'and the ex- posure times adjusted accordingly. If necessary, gas masks should be provided, and personnel should be warned of potential fire or explosion hazards. However, such high concentrations are not--anticipated:: Recommendations -for -gas masks can be obtained from the State 'Division of Industrial Safety. Respectfully submitted, Kenneth E. axwell,r Ph.D. Toxicologist SOIL CORINGS September 29, 1976 Soil Classification Odor Test Hole #1 (elevation - 18 ft) 0 - 10 light brown clay-sand no 10 - 16 reddish-brown sand yes 16 - 18 black clay yes 18 - 21 grayish-green -clay-sand yes 21 - 23 grayish-green sand yes Test Hole #2 (elevation 20 ft) 0 - 3 light brown .clay-sand no 3 - 9 black. very fine sand yes 9 - 21 gray-black clay & very fine sand yes 21 - 25 gray very fine sand yes 25 gray ligbt odor yes Test Hole #3 (elevation 20 ft) O - 14 light brown clay-sand no 14 - 19 light gray sand yes 19 - .22 gray-black clay yes 23 - 24 light gray sand yes 25 light sand light odor ... . yes Test Hole #4 (elevation 20 ft) 0 - 5 reddish sand no 5 - 9 gray-brown sand yes 9 - 15 gray clay &very fine sand yes 15 - 16 gray-brown &very fine .sand yes 16 - 21 black clay & very fine sand yes 21 - 24 gray-black clay yes 24 gray clay, some organic yes Soil Classification Odor Test Hole #5 (elevation 20 ft) 0 - 4 reddish sandy no 4 - 7 tan very fine sand no 7 - 17 tan clay-sand no 17 - 21 gray-tan very fine sand yes 21 - 22 dark gray sandy yes 22 - 24 light gray reddish-tan clay yes 24 gray very fine sand light odor yes Test Hole #6 (elevation 16 f t) 1 - 2 brown sandy clay no 2 - 6 black sandy clay yes 6 - 8 gray-black sandy clay yes 8 - 12 light gray very fine sand ye.s 12 - 17 gray-black sandy clay yes 17 - 19 light gray very fine sand yes 19 - 22 tan-gray clay-sand light odor yes 22 - 25 grayish sand light odor yes Test Hole #7 (elevation 15 ft) 0 - 5 brown sandy clay no 5 - 14 grayish-brown sandy no 14 - 20 gray clay yes 20 - 25 tan sand no �sT llo c Iz ' '10 ' I —rEZT PoL�E I O = T sr ODOR RELATED- ACTIVITIES Cul-de-Sac . Lot No. Street WATER 1.5 Install water line &-moire-=hydr--ant 1 Install water laterals & meters 1 1 1 Install water house connections 2 2 SEWER Install building sewer lines 1 2 Install building to lateral connections 1 2 GAS Install gas main 1 Install gas laterals to buildings 1 1 2 ELECTRIC & PHONE Install street crossing conduit 2 Install electric & phone service to buildings (same ditch) 1 1 1 MISCELLANEOUS Subgrade for street 2 Trenching for foundations 2 2 Legend: (1) Activity expected to expose odor material . . (2) Activity not expected to expose odor material . blank Activity whiccb will not expose odor material . To Bill Har_tge/John Whipple Dare 10/200/76 I am . forwarding to you the attached' letter to you re : .odor problem. I am sure you already have ' a_ copy , but if y TT replied , T would like a copy. Thank xou. PLEASE REPLY TO Signed - ., - __. . _ - _.. . -_H;--Wieder/Donn-ie.: j- Date Signed Redif9rm 4S 465 SEND PARTS 1 AND 3 WITH CARBONS INTACT. Poly PoIt(50 sots)0465 PART 3 WILL BE RETURNED WITH REPLY: - STATE OF CALIFORNIA—HEALTH AND WELFARE AGENCY EDMUND G. BROWN JR., Governor DEPARTMENT OF HEALTH 2151 BERKELEY WAY BERKELEY 94704 (415) 843-7900 Ext. 505 .October 21, 1976 D Mayor Harriett Wieder i i City of Huntington Beach P. o. Box 190 CITY OF HUNTINGTON BEACH Huntington Beach, California 92648 CITY COUNCIL OFFICE Dear Mayor Wieder: This is in reply to your September 28, 1976, mailgram to Governor Brown, re- ferring to an odor problem associated with the development of a subdivision. I phoned Mr. Robert Stone, Director, Division of Environmental Health, Orange County Health Department, who informed me that the cause of the malodor had been located and tentatively identified. I understand from our conversation yesterday that the material is most likely a waste from oil well drilling or tire vulcanizing. Mr. Earl Margitan in the Vector and Waste Management Section of our Department has been working on the scene assisting local staffs. A suitable, long-term management of this problem is certainly needed. Should I or other components of our Department be able to assist, we would be happy to do so to the extent our resources permit. Sinc-e-rely, R. Goldsmith, M.D. Medical Epidemiologist Epidemiological Studies Laboratory JRG:mm cc: Mr. Hurtienne Mr. Stone D 13 FOR BERT PARKER'S COLUMN 10/12/76 Vacation substitute by William G. Reed Frank Buccella is a tall, slim man who sports a beard and a soft voice and.he must be the most unlucky man in Huntington Beach. Frank is, unfortunately, the owner of the BIG STINK which permeated areas of the city for weeks. One of the troubles with this whole mess ispide from the pungent smell of garlic hanging over the neighborhoods near the site of some four-plexes Frank is building,that he is one of the nicest men to hit town in years. Brave,too. He is not the usual image of a builder.and although everyone near the construction on Dunbar Street near Meadowlark Airport would like to be very angry at him, you just can't get made at Frank for long. It has been difficult for anyone to cope with the odors and solutions to the problem have been hard to come by. The odors are elusive and seems to defy reason. But to me the cause has been obvious from the beginning. But Frank does not comprehend why lie is having all these troubles and he and everyone else connected with the problem may doubt that the following is the cause of this caper, but think about it a while. Lets go back a few centuries to a time when that area was a semi-grassy knoll with a sprinkling of trees and a few shrubs. Nearby was the ocean,the giant larder for the Indian groups which moved freely through the area in search of food,the good life and religious experience. Abalone, clams,lobster and other shellfish were important in the diet of these people and this area was a perfect location for semi-permanent residents. However,then,like now, people die for a variety of reasons`and are buried in grounds hallowed in ways important to the current society. �1 Eternal rest was an important concept then,just as it is now,and most societies frown on disturbing the graves of the departed. Strong sanctions have been imposed on those who failed to respect the dead and burial grounds were thought of as sacred forever. Comes now Frank Buccella to the same area complete with bulldozers and all sorts of modern machines to whip the earth into shapes on which to place homes for the current crop of inhabitants. In doing so Frank quite by accident discovered that others have been there before him and have left their departed ones, depending on the earth to offer eternal rest to their bones. Frank,too,is a respecter of the people who have used this earth before us and has treated the bones he unearthed with the greatest of respect for the departed. Page 2 But there are those who say the spirits of the ancient Indians are tired of having their bones exposed to the sun again and angry at being disturbed and are ready to rain havoc on those who trespass on the burial"rounds. True or not, Frank Buccella seems to be the victim of some sort of a curse. Work was stopped for some time while the archeologists tenderly lifted the bones from the construction site for reburial in a more suitable place. When that was done the earthmoving job started again. This time, without warning, as if some ancient curse on the land has come to haunt the builder,an odor began to arise mysteriously from a patch of land near where the bones of the Indians had been found. He removed most of the odorous dirt,but still the odor persisted and as the clamor of complaint rose, lie did all he could to keep the situation from becoming worse. Nothing really helped. No one could say how the odorous chemicals got into the earth and it seems nothing short of another equally strong chemical could reduce the smell. Still the odor persists. Frank bravely walked the streets near his project to keep residents informed. He called. in consultants and chemists of all lands. Mayor Harriett Wieder helped him talk to the neighbors and the whole city public works staff was mobilized to eliminate the accursed odors. Still, they persisted. While,of course, none of us really believes in a curse from a long-dead Indian nor that the ancient ones could be taking revenge on Frank Buccella for opening the burial ground,there is one fact which cannot be disputed. The fact is simply that there.is no real problem at this particular construction site unless the earth where Indians were formerly buried is opened. Then the wrath of the ages seems to pour forth. —30— STATE OF CALIFORNIA--HEALTH AND WELFARE AGENCY EDMUND G. BROWN JR., Governor DEPARTMENT OF HEALTH 2151 BERKELEY WAYS BERKELEY 94704 (415) 843-7900 Ext. 505 October 21, 1976 Mayor Harriett Wieder City of Huntington Beach P. O. Box 190 Huntington Beach, California 92648 Dear Mayor Wieder: This is in reply to your September 28, 1976, mailgram to Governor Brown, re- ferring to an odor problem associated with the development of a subdivision. I phoned Mr. Robert Stone, Director, Division of Environmental Health, Orange County Health Department, who informed me that the cause of the malodor had been located and tentatively identified. I understand from our conversation yesterday that the material is most likely a waste from oil well drilling or tire vulcanizing. Mr. Earl Margitan in the Vector and Waste Management Section of our Department has been working on the scene assisting local staffs. A suitable, long-term management of this problem is certainly needed. Should I or other components of our Department be able to assist, we would be happy to do so to the extent our resources permit. Sincerely, Bohn R. Goldsmith, M.D. Medical Epidemiologist Epidemiological Studies Laboratory JRG:mm cc: Mr. Hurtiennew* Mr. Stone 13 CITY OF HUNTINGTON BEACH INTER-DEPARTMENT COMMUNICATION HUNTINGTON BEACH To Don Bonfa From Mike Zambory Subject City Liability. on Frank Date. October. 15, .1976 Bucella' s Development,.- Warner at Bolsa Chica Since there exists a possibility of the odor problem re-occurring in the future on this site, it -is requested that the City.' s. exposure to liability be researched. The developer plans on including disclaimer clauses in their sales documents in an attempt to eliminate their future liability. Since the City is aware of the problem : and no long range solution has -been proposed, could the City be held responsible in the future? Michael Zambory Acting Director. of Public Works MZ:WEH:mc City of Huntington Beach �I P.O. BOX 190 CALIFORNIA 92649 J OFFICE OF THE MAYOR October 8, 1976 Dear Friend: Considerable study has been in progress on the odor problem in the neighborhoods surrounding the construction activity near Leslie and Dunbar streets off Warner Avenue. Technical experts have identified the chemicals causing the odors and have recommended steps to reduce the problems during the remaining construction steps. Construction activities which may cause a reappearance of the odor involve installation of a water main and water lines to building pads. Under strict supervision by the city this is expected to be finished in one to three days next week. Steps to.control the odor problem on the day the work is done include: 1. Doing the work as early as possible in the day when the prevailing wind is in the direction of the airport and away from•nearby homes. No work will be done unless the wind conditions are favorable. 2. . ' Trench surfaces and odorous earth removed from the trenches will be sprayed immediatelf on opening with a sodium hypochlorite solution to oxidize the odor-causing material methyl mercaptan. This should drastically reduce any odors. 3. A representative of the Huntington Beach Public Works Department and of the Orange County Health Department will be on the job site to make any recommendations needed to minimize the odor impact on nearby residents. Please be assured that if any additional construction activity on this site.would raise the possibility'of odors being generated,the city will insist on the same precautions being taken in order to protect the surrounding community. While the odors have been a real nuisance,the Health Department has determined that there is no threat to health. Nonetheless the city,the developer and all agencies involved with this problem are working to get this job over and the odor problem gone forever. Sincerely, Harriett M.Wieder Mayor HMW:lw is City of Huntington Beach k¢ P.O. BOX 190 CALIFORNIA 92648 b:. '':''• ar OFFICE OF THE MAYOR September 30 , 1976 Dear Friend: As a result of my meeting with some of your neighbors Tuesday night , I have followed through to try to resolve the problem odor in your neighborhood . In addition to sending the telegram to the Governor and State and County agencies , we sat down together with . one of your neighbors , Leo Gardarian , Safety Engineer for Standard Oil Company of California , who was not only very , very, helpful , but the one who is most responsible for finding the answer to what . appeared to be an unsolveable dilemma . At this meeting , Assistant City Administrator , Dick Harlow_, City Attorney; Don Bonfa , Assistant City Attorney Bill Amsbary, Walter Hurtienne , Division Engineer , Public Works , Mr. Frank Buccella, the developer , and his partner , Mr . Ong , Mr . William Anderson , Mr . Buccella ' s attorney and myself agreed that the developer would only proceed with any further work on the area that has generated the problem (SO yards in diameter) only upon direction of the City. The developer has been most cooperative and we will then proceed to resolve the problem as recommended by Mr . Gardarian. The pos - sible solution which seemed to meet all those present at the meet- ing , was a suggestion to spray the area containing Mercaptan Sulphur with Sodium Hypochlorite (bleach) , which will oxidize the Mercap- tan Sulphur and thereby remove the odor. After the meeting adjourned, some of the group met at the construct- ion site to try the effectiveness of the Hypochlorite on the soil . Two gallons of Purex was purchased and sprayed on some newly dug soil . The Mercaptan odor disappeared , but when the soil was disturbed , the odor was back. This trial run proved that the Mercaptan Sulphur when oxidized by the Hypochlorite will loose its odor . Tomorrow morning, the Contractor will fill a trench with a mound of dirt , cover it with sand , and spray Hypochlorite on it . This should eliminate one source of odor . The Department of Health is looking into the possible health hazards of the Sodium Hypochlorite in the atmosphere . The Contractor does not want to take any action which would not have the approval of the Depart- ment of Health. If the Department of Health determines that there is no health hazards for the community , the Contractor is more than will- ing to spray the area and get rid of the odor once and for all . Sin erely , . Harriett M. Wieder Mayor i I OFFICE MEMORANDUM To Acting Director Date October 1 , 1976 of Public Works From Don P . Bonfa, City Attorney In Re Agreement re Odor at Constructici Site - South of Warner near Leslie Please advise me immediately if you have any disagreement with Frank Buccella. You are in charge of administering the agreement . • If DON P . BONFA City Attorney DPB :b c 1 Attachment - .1; ORANGE COUNTY HEALTH DEPARTMENT - DIVISION OF ENVIRONMENTAL HEALTH 2 KENNETH R. REGIER INDUSTRIAL HYGIENIST I I MAILING ADDRESS ANAHEIM OFFICE ' P.O. BOX 355 1011 SOUTH EAST STREET , SANTA ANA. CALIFORNIA ANAHEIM, CALIFORNIA - 92702 (714) 776-5551 I r ._•Y"���'� ` OFFICE OF - : K CITY ATTORNEY s•i P. 0. BOX 190 HUNTINGTON BEACH CALIFORNIA 92648 zra DON P. BONFA TELEPHONE CITY ATTORNEY (714)53"555 _ September 30 , 1976 William L. Anderson, Esquire 888 North Main Street Santa Ana, California i Re : Agreement concerning odor at construction site south of Warner Avenue near Leslie Dear Bill : This will confirm the agreement entered into by your client,-- , Harbor Bluffs Development , Frank . Buccella and Ivy Ong;, and ,yourself and the City of Huntington Beach in my conference room this morning, that there shall_ be no construction activity at the above captioned construction site which will either create an odor or distU.rb materials which emanate an odor without prior consent of. the City of Hunting- ton Beach and, in the event of a disagreement between the parties, ,you shall p;ive the City Attorney_ three days notice before any such activity is done . a If this letter does not correctly reflect the agreement , please notify me immediately . Cordially, DON P . BONFA City Attorney DPB : cs cc : Harriett Wieder, P•lavor Richard Harlow, Acting City Administrator Walt Hurtienne , Acting Director of Public Works Council Members SOIL CORINGS September 29, 1976 Soil Classification Odor Test Hole #1 (elevation 18 ft) 0 - 10 light brown clay-sand no 10 - 16 reddish-brown sand yes 16 - 18 black clay yes 18 - 21 grayish-green clay-sand yes 21 - 23 grayish-green sand yes Test Hole #2 (elevation 20 ft) 0 3 light brown clay-sand no 3 - 9 black very fine sand yes 9 - 21 gray-black clay & very fine sand yes 21 - 25 gray very fine sand yes 25 gray light odor yes 1 Test Hole #3 (elevation 20 ft) 0 - 14 light brown clay-sand no 14 - 19 light gray sand yes Y 19 - 22 gray-black clay yes 23 - 24 light gray sand yes 25 light sand light odor .... yes Test Hole #4 (elevation 20 f t) 0 - 5 reddish . sand no 5 - 9 gray-brown sand yes 9 - 15 gray clay & very fine sand yes 15 - 16 gray-brown & -very fine -sand yes 16 - 21 black clay & very fine sand yes 21 - 24 gray-black clay yes 24 gray clay, some organic yes i Y Soil Classification Odor Test Hole #5 (elevation 20 ft) 0 - 4 reddish sandy no 4 - 7 tan very fine sand no 7 - 17 tan clay-sand no 17 - 21 gray-tan very fine sand yes 21 - 22 dark gray sandy yes 22 - 24 light gray reddish-tan clay yes 24 gray very fine sand light odor yes Test Hole #6 (elevation 16 ft) 1 - 2 brown sandy clay no 2 - 6 black sandy clay yes 6 - 8 gray-black sandy clay yes 8 - 12 light gray very fine sand yes 12 - 17 gray-black sandy clay yes 17 - 19 light gray very fine sand yes 19 - 22 tan-gray clay-sand light odor yes 22 - 25 grayish sand light odor yes Test Hole #7 (elevation 15 ft) 0 - 5 brown sandy clay no 5 - 14 grayish-brown sandy no 14 - 20 gray clay yes 20 - 25 tan sand no 7as-r o ST �, r /yoke � �O TEST PO L.F, i �" f - ODOR RELATED ACTIVITIES Cul-de-Sac Lot No. Street WATER 15 16 Install water line &�---��nt 1 Install water laterals & meters 1 1 1 Install water house connections 2 2 SEWER Install building sewer lines 1 2 Install building to lateral connections 1 2 GAS Install gas main 1 Install gas laterals to buildings 1 1 2 ELECTRIC & PHONE Install street .crossing conduit 2 Install electric & phone service to buildings (same ditch) 1 1 1 MISCELLANEOUS Subgrade for street 2 Trenching for foundations 2 2 Legend: (1) Activity expected to expose odor material . . (2) Activity not expected to expose odor material . blank Activity which will not expose odor material . CITY OF HUNTINGTON BEACH i INTER-DEPARTMENT COMMUNICATION HUNTINGMN BEACH To FILE From Richard A. Harlow Acting City. Administrator Subject BUCCELLA PROJECT Date September.= 30, 1976 This is to bring the file up to date with the events that have taken place with the Buccella project. Early Tuesday morning construction of the manhole and sewer lines commenced which unearthed a considerable amount of odorous earth. This produced numerous telephone calls and complaints from citizens in the area. I personally investigated the site and felt that the construction was consistent with what Mr. Buccella had advised the Council Monday evening. I also met with a resident of the area who appeared to be affected and brought her up to date with current activities. The citizens in the area had a homeowners meeting Tuesday evening and discussed possibly taking action against the developer or the City to eliminate the source of the odor. Mayor Wieder attended the meeting and advised the homeowners that .the City would be seeking a temporary re- straining order on the activities. The City Attorney's Office was ..con- tacted that evening and concurred that this action appeared to be appropriate; Wednesday morning the City Attorney's Office began research on the matter and completed their research by mid-afternoon. In the meantime, the Department of Public Works had scheduled a meeting with the developer as well as a representative from the APCD to discuss the problem. That morning I contacted the. County Administrator ' s Office to advise them of our problem and to seek assistance. They put me in touch with the Environmental Managemeabr=: Agency who referred me to Mr. .Stone of the Environmental Health Division of the Health Department. He was most co- operative and placed one of the top assistants, Mr. Ken Regier, on the project. Mr. Regier will be working with the APCD to determine the cause of the odor and extent of the problem. On Wednesday afternoon, the City Attorney' s Office contacted the attorney for Mr. Buccella. They agreed that no further trenching would occur. The only activity on the site should be a backfill operation to seal off the exposed odorous material. A meeting has been scheduled for Thursday morning with the attorney for Mr. Buccella, the City attorney, and myself to attempt to agree to a stipulated temporary restraining order. It appears that the Buccella Corporation is being most cooperative in this matter and we hope to resolve the situation as quickly as possible. CITY OF MUM-riNWON BEACH iNT'E1k-;bE-PAAfMtNf COMMUNICATION H HUNTiNGTON BEACH' To FILE From Richard. A. Harlow Acting city Administrator Subject BUCCiEfl-A PORIOjtCrk Date September 10, 1976 I was contacted this 'morning by t6b .H, GardAriahi Safety -Engineer with Standard Oil at t! Segundo: He advised the that he is a resident of the area affected by the odors in the tuddella Subdivision and that he was familiar with the problem the City was currently. facing in that. he hadi.-dealf: with §iifiil&tma-Ete-' t6 in the past while Working for Standard Oil. He indidd-66A that the problem was the methyl m6rcdptan sulphur present in the soil which Was emitting the odor and indicated that past . . experience had proventhat the use of Any okidizihq agent would change the chemical dbinpogiti6h of the sulphur and thereby eliminate the odor. He suggested th&t any of the follO-' ,Wihq materials could be used : lite, sodium hyp6dhldkiit-e (used for bleach i---Lthi§, is a liquid) ; calcium hypo- chlorite (po­Wlibt f6±t"-w6Uld have to be disded into the soil) ; potassium permangAhat6 (the pt6bi&fi with this is that it would turn the earth purple and may cause the rdgiddhts in thd .akdA to be concerned by the appearance even though it is a stronger 6-61ht) Any one of these would serve as a �g Y catalyst to dbhVdkt the methyl ml-e-kda-ptdn sulphur to A methyl mercaptan sulphatei which it a salt; and thereby eililmiiheitd the odor: I was alto d6ntAdtP.d by Herbert Clark; a ptl;hcl;p&l in a firm called ConVdrsion byhdidids- 4 He is aresident Of Santa Barbara and had heard of our problem over the radio this morning. He. advised me that a sub- sidiary of his 6-6-m- p' aiihiyj known b West6rlok ivisioni. at one time worked with major oil d6tp&fii6§ in dibp6sizng of oil field:.' and oil refinery Wastes: 96 indicated that the rneithdd used by this particular company _ wasto excavate ad much of the soil As Possible and to doVitit the remaining. dirt with illidd and then to disc it: ilhf-d the soil. this apparently is consistent with the §atb method fbd&fdn6fid&d by Mr-: dardzitiAhi I discussed with Mki; keqi6f of the Environmental Health section of the Health bepa' ktifiefit the possibility of spraying the site with the sodium hypochi6ritdi; It was Mr. k6giekis opinion that the odor tnely be as offensive as the methyl . mdrdaptah and that some consideration should be given to that possibility: kd A1§6 AdVibed me that he did have an opportunity to review the dh6tiddl dhAlys69 but as yet had not k6deiV6d the precise-bke&k- down of the quantities of the chemicals in the soil (this information has since been Pk6Vi.ded to the Health b6pAkbheht) . .,- if- was kt. -keqier,1,$ opinion that ,the- rec6mMdndati6ft of the tku6sd&jl,.!,ab provided by-,Mr. 'Budcella 'that a lime application be used, disc6d into the soil, covered over and theb— watered .. ' .would be more acceptable in the heighborhqod than the- sodium hypbchlorite. I discussed this alternative with the " City -Attorney; as well as BuccellA, who w'iezid in attendance with .Mr. Gar.darian. It was their opinion that they would proceed with the sodium hypochlorite, however, they would be using it in small quantities as a testing measure first and then if that worked they would be using it on a larger scale but again BUCCELLA PROJECT -2- September 30, 1976 under controlled conditions. This appeared to be acceptable to the group. I did recommend that Mr. Buccella discuss with his toxicologist any chemical application that would be applied to the soil and to receive from him in writing some certification that the application was not harmful to the health of any person living in the area. Mr. Buccella indicated that he would be providing this type of insurance. A meeting was held this morning between the City. Attornev.Bonfa, Assistant City Attorney .Amsbary, .Frank Buccella, representatives of Mr. Buccella' s Companv as well as his attorney, Mayor Wieder, Mr. Leo Gardarian and myself. After considerable discussion of the problem, it was agreed by both parties, the City and the Buccella Company, that no work would be commenced on the site without consent of the City. Mr . Buccella further agreed that he will notify the City two to three days in advance of any activity and should there be disagreement, this would allow ample opportunity for the City to file a temporary restraining order. Because of this, it was agreed that the City would not be-filing the temporary restraining order unless it appeared to be absolutely necessary. That meeting adjourned with the parties involved, along with Walt Hurtienne, proceeding to the site to test the applicability of the bleach applied to the soil. At approximately 2 :30 on 9/30/76, Walt Hurtienne contacted me from the Buccella site. He advised me that the testing of the bleach on the soil material did work, however, .it--was not the- kind -of a process that would eliminate the .problem immediately---it would probably take some time for the chemcial action to take place. - He did point out that there was approximately 50 yards of the odoriferous material on site which had to be disposed of. It was the recommendation of the Air Pollution Control District yesterday that the material be hauled off to the dump. It was estimated that this would take approximately four hours. The Air Pollution Control District' s direction to remove it to the dump was not so much that not- it should be hauled off to the dump but that it should not b lying around the surface of the site being exposed to the air and thereby creating further problems in the neighborhood. Mr. Buccella' s comment to that to me this afternoon was that he would prefer burying that soil in the trenches that were dug throughout the site so that the soil could then be treated with the necessary chemicals and a cover of fresh earth applied to the site. He estimated that this .back fill operation would take approximately two hours. Based on the fact that the amount of time for the back fill would be approximately half of what it would take to remove it and haul it to the dump, I authorized Mr. Buccella to proceed with the back fill operation. . I did qualify this, however, by advising Mr. Buccella that he should be contacting the persons' in the neighborhood, at least those who would be most affected by this, and tell. them of his proposal to disturb the soil in the back fill operation- -he agreed _tc- this. Walt Hurtienne advised me that Tom Blackman, the inspector for the Department of Public Works, would be on site during this entire operation to see to it that all precautions were being taken to reduce the amount of odor. Precautions that we would expect them to take in this regard would be WELLA PROJECT -3- September 30, 1976 :praying of the soil with the chemical provided by the laboratory to Mr. Buccella. In addition, the inspector will be stopping by the site on an hourly basis to see that no problems occur. - . i September 25, 1976 j To: Mr. Frank Buccella Buccella Engineering Builders 'From: Kenneth E. Maxwell, Ph.D. Consulting Toxicologist Subject: Toxicological Hazards - Supplement to Report of September -24, 1976. My study of the toxicological characteristics of the emanations from the construction site, as given .in my report dated September 24, - 1976, indicates that there is no hazard to the health of residents of the surrounding community, even though discomfort may be experienced from the high odor-pro- ducing properties of the material, and at extremely dilute concentrations in air. 1 This supplemental report relates to the comfort and safety of workmen, who will be in excavations and trenches in close contact with the source and, consequently, in con- centrations several times higher than in the vicinity sur- rounding the actual work area. This report is also prompted by the fact that the following have transpired since the earlier report: (1) I have received a copy of the analytical report from West Coast Technical Service Inc. -, which contains information not previously available, (2� I have had a chance to inspect the development site and surroundings more thoroughly than on my first visit, and (3) I have examined a specimen_ of the offending soil under the microscope. The West Coast Technical Service )report dated September 22, 1976, shows the presence of the following substances not previously mentioned: hydrogen sulfide, sulfur dioxide, and (assumed to be present due to odor) carbonyl sulfide. Comments on the toxicity and hazards of these compounds are as follows : �H dro e�nn sulfide is a colorless , flammable gas , with an odor resembling rotten eggs , and can be detected b the human nose at a concentration of 2 pb (parts per billion. The USOS (U. S. Occupational Standard gives- a ceiling concentration of 20 ppm, and a peak concentration of 50 ppm. The Ambient Air Quality Standard of the California Air Resources Board is 0.03 ppm for 1 hour. Where workmen are concerned, its toxic nature indicates the need to lean toward the side of caution, since it can be fatal more quickly than a similar concentration of cyanide. West Coast' s analysis gave no indication of concen- tration, and since Truesdail' s limit of detection was 10 ppm, the findings leaverpen the possibility of significant quanti- ties of hydrogen sulfide. My opinion, however, is that the contribution of hydrogen sulfide is low. . � Mr. Frank Bu._ella - page 2 Carbonyl sulfide (carbon oxysulfide) was suspected by odor only. The material is an odorless, volatile liquid, A with odors being caused by impurities . The lowest reported lethal concentration to laboratory animals by inhalation is 2,900 ppm, which places it among the less toxic materials . Hydrocarbons were mentioned in my previous report, but the concentration reported by Truesdail (90 ppm) justifies discussing this constituent in more detail. The hydrocarbons i detected were aliphatic components of petroleum in the gaso- line range. These compounds are considered to be of relatively low toxicity. For example, the USOS for heptane (C ) is 500 ppm, and this is taken generally to be the maximum allowable concentration of gasoline. However, where workmen are exposed at the source' of the fumes, hydrocarbons may contribute to their discomfort, and could add to the toxic effects of other materials that may be present. Fire and explosion hazards depend on the concentration of flammable gases in suscep ble areas on the construction site such as trenches excavations and pipes . The following substances in the malodorous fumes are flammable, and can be a fire or explosion hazard under certain conditions : methyl s mercaptan, methyl sulfide, hydrogen sulfide, carbonyl sulfide (if present) , and hydrocarbons in the gasoline range. The concentration of these materials is apt to be too low to be dangerous, but there is not enough imformation on the concen- trations of the various components in the- trenches to say whether there is or is not a potential explosion hazard. As a precaution, I recommend that workmen in trenches and ex- cavations be advised to refrain from smoking. I assume there will be no need for welding. Comfort and safety of workmen. People digging or working in the ending so�ay expert nce acute discomfort from the odor while in close proximity to the source of the fumes . - Gas masks -will provide protection. Also,- confirming my verbal statement, workmen should be told to wear gas masks where ex- posed to toxic fumes in closed spaces or areas such as trenches where fumes cannot dissipate rapidly. It is accepted practice among sewer workers, spray operators , and others who work in confined or, semi-enclosed spaces , to use the precautionary measure of wearing gas masks, even though danger to the communi- tyin surrounding areas is not a problem. Anyone familiar with industrial safety practices will accept this simple precaution. Orrii in of odor. My initial opinion was that the offending material was of natural organic origin, based on the elevation of the site near, sea level, the presence of peat, and the nega- tive laboratory report as to refinery waste. However, the possi- bility that the material had a refinery origin cannot be ruled out. Examination of the material under the microscope showed that- it did not contain diatomaceous earth, but had the appear- Mr.. Frank Buc,_lla - page 3 ance of finely divided clayy. The sample dispersed in water slowly. The material may be discarded filter cake from the refining .of casinghead gasoline (natural gasoline) or straight .run gasoline. In any case, since there was no odor before the offending material was uncovered by excavation and trenching, there is no reason to think there will be a problem after the overburden of earth is replaced. Respectfully submitted, Kenneth E. Maxwell, Ph. D. Toxicologist Addendum: Sulfur dioxide, found 'to be present by West Coast' s analysis',is a gas with a very pungent odor, and is highly f irritating to mucous membranes and the respiratory tract. The USOS has been -set at 5 ppm. Since Truesdail' s limit of detection is 10 ppm, the concentration; theoretically, could be at a dangerous level. However, the gas is so irritating that it serves as its own. warning agent. It is unlikely that sulfur dioxide is a significant factor in producing the offensive odor, nor is it apt' to be a hazard to workmen at the site. K.E.M. 1 i 0 wry-IL September 24, 1976 I To: Mr. Frank Buccella From: Kenneth E. Maxwell, Ph.D. 1 Consulting Toxicologist Subject: Toxicological Hazards , Development off Warner Avenue, Huntington Beach, California i The evidence, based on an examination of the site, to- gether with analytical results made available to me, is that the unpleasant odor emanating from the construction site has a natural origin. The problem appears to arise from organic material laid down in a marsh or estuary that formerly existed in the area; but later became covered with a layer of soil. ' Removal of the overburden exposed layers containing the partial- ly decomposed organic matter, releasing some of the gaseous and volatile decomposition products to the atmosphere. There is no substantial evidence of petroleum or other waste material I except decayed vegetation and natural deposits of sediment. i It should be understood before appraising the comments i in this report that toxicologists make a distinction between "toxic or poisonous" and "dangerous or hazardous . " The reason for this is that very few things we encounter in the environment are completely non-toxic or non-poisonous under all conditions . For example, oxygen is non-hazardous in its normal atmospheric concentration, but if breathed in pure form for a long period of time, it becomes dangerous and can be lethal by causing a condition called hyperoxia. Thus, they-danger of a toxic sub- stance depends on a number of conditions , usually the concen- tration being the most important one in determining the degree of hazard. Based on the results given in an analytical report by Truesdail Laboratories , dated September 22, 1976, and a report by William Hartge of a verbal report from Dr. Fisher of West Coast Technical Services on September 21, 1976, substances were detected that probably account for nearly all the bad odor. My -comments on the potential danger to the health of nearby residents are as follows : Methyl merca tan (methanethiol) is a gas at ordinary temperature and pressure. The mercaptans are notoriously smelly materials, one of them being a constituent of the malodorous secretions of skunks . This and closely related mercaptans have odors that are detectable at extremely low concentrations in air. For example, it was determined that t 1. .. Mr. Frank Buc la - page 2 ethyl mercaptan, the nearest relative to methyl mercaptan, can be smelled at a concentration of .one volume of the mer- captan in 50 billion parts by volume of air. Since the ob- noxious odor increases with decreasing molecular weight, methyl mercaptan would produce an odor at an even more dilute concen- tration, well below the toxic level. Therefore, atmospheric concentrations of the mercaptans in the open are not necessarily hazardous, even though the . odor may be oppressive., and it is only when the odor becomes overpowering that the concentration would ordinarily be high enough to be cause for alarm. However, the lower weight mercaptans, such as methyl mercaptan, are toxic,. and can pose health hazards in industries where workers are exposed con- tinuously to the gas : The USOS (U. S.. Occupational Standard) for methyl mercaptan in air ives • a CL (ceiling concentration) of 10 ppm (parts per million. The degree of hazard to health from atmospheric methyl mercaptan can be best understood in perspective by compari- son with the principal toxic ingredients of automobile ex- haust and its by-products : hydrocarbons , carbon monoxide, nitrogen dioxide, and ozone. Hydrocarbons are the least toxic ` of the group, and need not be discussed in this context. The danger of carbon monoxide is well known. The U. S . Occupa- tional Stancnar-Tis ppm in air, while the California Air Resources Board standard for 12 hours of exposure is 10 ppm. Nitro e_n dioxide is more toxic, having a USOS :of 5 ppm, and a National tandard for air pollution of 0.05 ppm, average annual concentration. Ozone is the most toxic of the main vehicular by-product pollutants , having been assigned a USOS of 0. 1 ppm and a California Standard for air pollution of 0. 1 ppm for only one hour exposure. These values give an indication of the relative hazard of methyl mercaptan, which has been assigned a USOS of 10 ppm, roughly. in between the standards -for carbon monoxide and-nitrogen dioxide, but having the advantage of an -extremely disagreeable -odor as a warning flag. Methyl- sulfide (dimethyl sulfide) is a colorless liquid at ordinary temperature and pressure, but is fairly volatile, with a boiling point of about 36°C (about 97°F) , and has a disagreeable odor . Data on toxicity are limited with respect to inhalation hazards . By in estion, toxicity evaluations on i laboratory rats gave an LD50 comparable to a median lethal j dose) of 3, 300 mg/kg (milligrams per kilogram) , a value that I is considered to indicate very low toxicity. For example, an average -lethal dose of aspirin would be about half that quantity. Intan ible effects on health. Bad odors may be not only toxic ut annoying as weTT, amain the present case annoyance l 1 , l Mr. Frank Bucct a - page 3 seems to be the most troublesome aspect. However, it is well to .recognize that annoyance, in itself, can cause headaches and 'even nausea. When these symptoms are already present, bad odors could exacerbate the condition, very .largely through suggestion alone. Aspirin for headaches is the largest over-the-counter medicine in terms of volume, and it would be surprising if a number of people living within nose-shot were not in need of an analgesic, odor or no odor. Any action that reduces the annoying effect of the bad odor could be expected to alleviate the problem. There- fore the spraying of perfume was a good shot in the dark. If an effective deodorant can be found, it would be worth trying over a sufficient area to determine its efficacy. Potential problems . If corrective measures that are taken during the con- struction phase of the development turn out to be inadequate to prevent future- emanations of smelly gases, trouble could come from three sources : odors, toxic effects , and fire or explosion hazards . Gases that are heavier than air tend to accumulate in buildings , and can . reach dangerous levels of a concentration. Since the principal malodorous gases known to be present, methyl mercaptan and methyl sulfide, possess all three undesirable properties ,. consideration must be given to any precautions that can be taken against future emanations . Hydrogen sulfide, if produced by decomposition of other sulfides,s, - Ty disturbances or changes in soil conditions , would pose similar problems . Non-problems . Hydrocarbons, such as those reported in the analytical results, have generally low toxicity, and would require much higher concentrations to comprise a health hazard. However, if additional findings show an increase in hydrocarbons, the possibility of future emanations of the lower molecular weight hydrocarbons collecting in enclosed spaces such as buildings and utility trenches should be studied with a view toward evaluating fire and explosion hazards . Hydrogen sulfide and carbon disulfide are both smelly and toxic, Eut since the fi—din' was negative, a discussion of their hazardous nature is not needed. The negative report- on chlorinated hydrocarbons also obviates an evaluation of these materials . } References and documentation canbe furnished if you wish to have t em. RECOMMENDATIONS (some of which have been done or may be in progress 1. Use deodorants during times of high odor levels if any can be found that are demonstrated to be effective. .77 J .i �.w+.:w�io`<+a:-:.ems•...- -- �:..s+�vsGra.o� •-...�7c�*:'�9erf�a �-`7tis63�+�+c?z' -.*.S.--�.v�a'tx:' e,w .�.9�y w::i:��uSPa;i; Mr. Frank Buccella - page 4 2. Remove as much of the odor-producing soil as practi- cal, that remaining to be covered with a seal of fresh soil. Take core samples if necessary to determine the depth and extent of the offending layer. 3. Obtain input from as many qualified sources as feasible concerning the following: a. The depth and kind _ of soil needed to form a non-porous , permanent seal over the odiferous stratum. It would be possible to make usefulcbterminations in the labora- tory with straightforward tests , but the time required would probably not be acceptable in view of the urgent need for decisions . b. Whether there is any possibility of the malodorous gases being given off at or immediately surrounding the building sites . If so, take corrective measures as in the other. areas . 3 4, If the odor in the general area does not subside, have air samples taken. at the site to determine concentrations, i perhaps through the cooperation. of the' air pollution control district. 5. If it is necessary for workmen to work in trenches or other depressions in areas where the odor o:f gases is evident, concentrations should be determined, 'and the ex- posure times adjusted accordingly. If necessary, gas masks should be. provided, and personnel should be warned of potential fire or explosion hazards . However, such high concentrations are not anticipated. Recommendations for gas masks can be obtained from the State Division of Industrial Safety. Respectfully submitted, Kenneth E. axwell,r Ph.D. Toxicologist FOR IMMEDIATE RELPASE �-� FROM Bill Reed 5: 6511 September 28, 197b 77-46 : :: ::::. " ............:....... i e �� ' City of Huntington Beach P.O. BOX 190 CALIFORNIA 92648 t { Huntington Beach City Council Monday night decided to call for help in its on going battle to find a cure for the odor problems on Warner Avenue near a construction site east of Bolsa Chica Street, across from Meadowlark Airport. For weeks a garlic-like odor has eminated from the earth where developer Frank Buccella has faced troubles ranging from the discovery of a centuries old Indian skeleton to the odor which has all- but closed the construction project. Chemists hired by both the city and by the developer have looked at the chemicals in the 60 foot diameter of offending dirt and each lab has all but thrown up its hands when it comes to recommendations to cure the problem. Tuesday Mayor Harriett Wieder called. on governmental agencies from Governor Brown on down to lend a hand in finding a cure for the problem. In a telegram to various state, county and federal agencies she asked for help. "The city is faced with a public nuisance I with which we have been unable to cope and request and require any assistance your office may be able to render. " "We do not know how to solve the noxious , but non-toxic odor problem. " -more- ADD 1-1-1 Buccella is beginning soil boring today in his attempt to solve the on-site problems. He told the council the area from -. which the foul odors come is about 1 ,000 square feet. He has removed some 400 cubic yards of dirt .and is spraying it ;with chemical to kill the odor. While the odor apparently is irritating to some residents, . the fumes do not appear to be toxic, according to city officials and the chemists. a -30- 1 i �!a ' City. of H untin tots - Beach P.O. BOX 190 CALIFORNIA 92648 OFIr'I(:G 01' PUBLICINFORMATION WII,IAA1NI G. REEID Telepl,00c (714) 536-5511 i i Mailgram sent 9/28/76 Distribution List: Fmvironmenlal Prolection Agency, San Francisco i Oranre Comity Board of Stilwi-visors, Alln: Chairman Ralph Diedrich Snpervisor Laurence Schiuit Snpervisor Thom.is Riley. Governor F,dnumd G. Drown Attorney- General Gvelle Your-'er Orange Comity Dist. Attorney Cecil Ilicks Tom Quinn, State Air Resources-Air Quality, :Sacramento The City of lluntington Beach is faced with a public nuisance with which we have been unable to cope and request and require ally assistance your office may be able to render. A.noxious odor arising from a patch of earth some GO feet in diameter, a strong garlic-like smell, leas hung over a portion of the city for weeks while chemists investigated the cause. Despite analysis by two leading laboratories no solution to the problem has been discovered. Soil has.been removed, the area sprayed and still[lie odor hangs over the city. The City Council has declared the odorous problem a public nuisance and has called on couily and state agencies to help. We do not know how to solve Lite noxious, brit non-toxic odor problem. if your agency or auy other ),off know of can help please call Mayor Harriett Wieder, or Assistant City Administrator Richard Harlow inunedialely. Mayor Harriett Wicder report ��n�`� z ; Prepared For WEST E ST Mr. Mel Tooker COAST Dept. of Environmental Resources Post Office Box 190 TECHNICAL Huntington Beach, CA 92648 SERVICE " Y = Date Job No. INC. September 22, 1976 11220 17605 Fabrica Way,Suite D L.•o• .•rta• _a + PO.No. _ Cerritos,California90701 '' ''-' " Verbal per Mr. Mel Tooker 213/s21-9631 �..,w 714/523-9200 _ The clay samples submitted by you were received in our laboratory on . September 10, 1976 and analyzed for volatile components which could result in irritation and/or discomfort to persons exposed to contaminated air. "f d, A portion of the sample was initially placed in an evacuated container and cooled in liquid nitrogen after which the air was removed from the system. The contents were then warmed to 40°C and the volatile components analyzed by mass spectroscopy. The only compounds, other than the expected water and carbon dioxide, were trace quantities of hydrocarbon in the butane through hexane range. A second experiment was then carried out by passing dry nitrogen gas through a 50 gram sample of the clay which was warmed to 100°C and trapping the organic components on a Tenax-G tube. The trapping tube was then attached to the mass spectrometer inlet and heated to 275°C to desolve any trapped material. The off-gas products were then analyzed by mass spectroscopy. The only materials which were detected were aliphatic hydrocarbons. A third experiment was then performed. The volatile components from a 150 gm sample of clay were distilled under vacuum at a temperature of a 150°C. The volatile components.were then collected in a liquid nitrogen trap. The trapped material was then analyzed by mass spectrometry and combined gas chromatography-mass spectrometry. The products which were detected and identified by these procedures were as follows: -� = dimethyl sulfide hydrogen sulfide. sulfur dioxide methyl mercaptan Specific components which were analyzed for but not detected were the following: 11UNiiNGTOid BEACH carbon disulfide PLANNING DEPARTMENT carbonyl sulfide r E. 1 chlorinated hydrocarbons > � .P ` ,� 976 P. O. Box 190 Huntin&n Beach, C31if. 0264E This report pertains only to the samples investigated and does not necessarily apply to other apparently identical or similar materials.This report is submitted for the ex- clusive use of the client to whom it is addressed.Any reproduction of this report or use of this Laboratory's name for advertising or publicity purposes without written nuthnrizatinn is prohib;tnrl. °u V jT COAST TECHNICAL SERVIC JC. Dept. of Environmental Resources September 22, 1976 Mr. Mel Tooker Page 2 While carbonyl sulfide was not detected, it was the consensus of the personnel.at this laboratory that it was present at a very low level because of the observed characteristic odor. We are unable, at this time, to offer any firm suggestions as to procedures to follow in carrying out the balance of the grading operation. It is felt, however, that the removal of the most offensive material to a suitable landfill area, and the application of lime to the area followed by the application of clean fill dirt may alleviate the problem. If we can be of any further service, please do not hesitate to contact us. t Respectfully submitted, WEST CqAS ECH C' L E•RVICE INC. wig -�ishe Ph.D. Vice P e ent-Technical Director HDF/kd CC: Mr. Ken Goddard Huntington Beach Police Dept I` t { -. 'Oj(<• %*Y { -'Ss P.-+-.-c�: 5-tv+ •L a..ty •'r`-..a�:i-'��'.•*�j -- — - - •� - /t r11D1•.PJ. R FIGU IOA STEET Oi ` ;C �PA15�5. - P111CROSIOL.Q t' 1FITS FNGI'a ER LUt3 ACJt`el: s.S � nU r` ':14GI3EAPC14`, I7EVElOPIdEPIT - tC 't IP n;,'- ►LAEEti F:rJ�F i l �,., iC.? + 1u:A r r. C`P•.G'L C t _T. F2 :1.•t: L A.G'-� • alFNI' ' 3001 P'ed Mill Avenue 5epter"";tic>, ,yL7,ATE , `f , Cos La Mesa, Calxforni 26 { § Attention Allen.$ell121�t L'IVIrD Sep t`eniaer 13;; l y76 c , Y SAMI'Lls Ioi1r samples of soil", •orc� ni}' prcrund �7 t. i,A 3OR.4TDI<Y. !`+'D YNNFS'><YGA'IIQ1`d Cause,o C f oi3 ar r , �E CJL TS_ `Tlie air in .thit.e of the bx was'analy;.:t,a---for volatile',..componen'tt by.--gas• , >' 'chromatography;`.it;ryas found tu. contain .aUout ;90 ppm hydrocarbons frOma` C4. t (butane). to C9 (nonane). This .cancentraCiorr qL these gases is completely halm- :`' less- to human health. The air.was also analyzed .for the presence of hydrogen sulfide and sulfur. dioxide. Neither was detected, the detectio.h limit''was: 10 parts per million. The odor of the sample is:due to mercaptans and related substances. These are organic sulfur containing compounds with very. strong un- pleasant odors. The composition of the hydrocarbons found in the air above the soils is quite similar-to that of gasoline but we could not determine whether it is natural (casing head) or refined gasoline. The soils had a pIi of 6 which is in the normal range, whereas refinery wastes tend to be highly acidic. This would indicate that the source is probably not refinery waste. Since the odor did not appear until the: area was excavated it is probable that when the excavation is refilled the odor will disappear-, to remove or mask the odor during operations we suggest you contact a firm that specializes in this work, such as Aeroscohic Engineers, (213)- 877-0128. 2��� Respectfully submitted, TRUESDAIL LABO1'.A`I'Oh I+l S,, INC. V. _ � -t Charlie A. Crutchfield, Ph.Tjr 11 . Technical Director . 1 This report applies only to the sample, or samples• investigated and is not necewarily indicative of the quality or condition of appa-endy identical or similar products. As a mutual protection to clients, the public and rlir.,2 Laboratorie_, this report is submitted and accepted for the exclusive use of the client to whom it is addressed and upon the condition that it is not to be used, in whole or in part, in any advertising or publicity matter without prior written authorization from these Laboratories. CITY OF HUNTINGTON BEACH INTER-DEPARTMENT COMMUNICATION HUNTINGTON BEACH To File From H. E. Hartge Subject Odor Problem Tract -9235 Date September 21, .1976 On Thursday, September 9, 1976 , while grading for the development of the above tract, some material was uncovered which released an odor which : carried over a widespread area, downwind from the site.. The Fire Depart- merit -took a soil sample which was turned over to the Police Lab.: This sample, in turn, was sent to West Coast Technical Service Lab in Cerritos. Rains on Thursday night, Friday and early Saturday caused water to cover some 'of the contaminated areas easing the odor problem somewhat. The preliminary foundation investigation for the proposed development did not disclose any problem which resulted in the odor problem. Five : borings were taken to depths varying from 15' to 20 ' . Mr. Buccella also arranged for a sample of the material to. be taken to Truesdale Lab in Los Angeles. The written report has not been received yet,. but preliminary conversations with the lab indicates that .the odors do not cause a hazardous problem to. a person' s health.: Likewise, the written report has not been received from West Coast Technical Service. Following is information I took down on September 20,. . 1976, during a telephone conversation with Dr. Fisher: of that .lab. Di-methol sulfides Methylmercaptan Small amounts of hydrocarbons No chlorinated hydrocarbons No detectible carbon disulfide No evidence of a solvent dump On Saturday, September 18, 1976 , I directed City personnel to apply a deodorant on the site to attempt to relieve the bad smell entering onto the adjoining properties. This appeared to help according to some citizens, while others felt it only added another smell. I instructed Mr. Buccella to confine his activities at .the site to. filling over thee contaminated areas with a clean fill and to the removal of trash until: the full report has been received and some remedial action can be taken as a result of recommendations of the consultant. Also, he can commence trenching for sewer lines in those areas away from the bad soil. If he encounters some adverse odors from the excavation (1) material should be hauled away from the site, or (2) the material should be replaced in the trench and covered up. Finally we are looking towards Mr. Buccella, through his consultants, to come up with :a plan to first relieve the area of the odors -as soon as possible and, secondly, to gain some assurance that this will not be a continuing problem. HEH:ae WEST COAST TECHNICAL SERVICE INC. invoiceAnalytical Chemists &Consultants • 213/921-9831 • 714/523-9200 Date September 22, 1976 Invoice N� 11240 Customer P.O.No. Verbal per Mr. Mel Tooker Our Job No. 11220 Presented to: Dept. of Environmental Resources Mail Remittance to: Post Office Box 190 17605 FABRICA WAY, SUITE D Huntington Beach, CA 92648 CERRITOS, CALIF. 90701 Attn: Accounts Payable Dept. For Professional Services as listed below. A written report is our Terms: Net due upon presentation. only product. AnalY-FIS cf Soil Samples for Noxious Vapor 5:00.00 A 2P 1 TOTAL AMOUNT DUE inn The nature and scope of the above invoice,or any fees pertaining thereto,shall not include the authority to reproduce any reports,to use the name of West Coast Technical Service, Inc.for advertising or publicity purposes,or to represent that any or all products,except the exact quantity of the items mentioned above,have been tested and/or analyzed by West Coast Technical Service,Inc.The warranty for services or materials rendered by West Coast Technical Service,Inc.shall not exceed the feels)mentioned in the above invoice,and the buyer herebywaives all other warranties,guarantees,conditions or liabilities,expressed or implied,arising by law or otherwise(including without limitation any obligation of West Coast Technical Service,Inc.with respect to consequential damages)and whether or not occasioned by negligence of West Coast Technical Service,Inc. DUPLICATE U � •ti a ti • I•u CITY OF HUNTINGTON BEACH ram' INTER-DEPARTMENT COMMUNICATION HUNTINGTON BEACH To File From H. E. Hartge Subject Odor Problem Tract 9235 Date September 21, 1976 On Thursday, September 9 , 1976 , while grading for the development of the above tract, some material was uncovered which released an odor which carried over a widespread area, downwind from the site. The Fire Depart- ment took a soil sample which was turned over to the Police Lab. This sample, in turn, was sent to West Coast Technical Service Lab in Cerritos. Rains on Thursday night, Friday and early Saturday caused water to cover some of the contaminated areas easing the odor problem somewhat. The preliminary foundation investigation for the proposed development did not disclose any problem which resulted in the odor problem. Five borings were taken to depths varying from 15 ' to 20 ' . Mr. Buccella also arranged for a sample of the material to be taken to Truesdale Lab in Los Angeles. The written report has not been received yet, but preliminary conversations with the lab indicates that the odors do not cause a hazardous problem to a person' s health. Likewise, the written report has not been received from West Coast Technical Service. Following is information I took down _on September 20, 1976, during a telephone conversation with Dr. Fisher of that lab. Di-methol sulfides Methylmercaptan Small amounts of hydrocarbons No chlorinated hydrocarbons No detectible carbon disulfide No evidence of a solvent dump On Saturday, September 18, 1976 , I directed City personnel to apply a deodorant on the site to attempt to relieve the bad smell entering onto the adjoining properties. This appeared to help according to some citizens, .while others felt it only added another smell. I instructed Mr. Buccella to confine his activities at the site to filling over the contaminated areas with a clean fill and to the removal of trash until the full report has been received and some remedial action can be taken as a result of recommendations of the consultant. Also, he. can commence trenching for sewer lines in those areas away from the bad soil. If he encounters some adverse odors from the excavation (1) material should be hauled away from the site, or (2) the material should be replaced in the trench and covered up. Finally we are looking towards Mr. Buccella, through his consultants, to_. come up with a plan to first relieve the area of the odors as soon as possible and, secondly, to gain some assurance that this will not be a continuing problem. t1I?11_a.e CITY OF HUNTINGTON BEACH INTER-DEPARTMENT COMMUNICATION HUNTINGTON BEACH To Staff From H. E. Hartge Subject Recap of Council Meeting of 9-20)ate September 21, 1976 Action taken by the City Council regarding items involving this department and requiring action are recapped as follows : Please refer to your copy of this agenda. 1. All items on the Consent Calendar were approved. 2. Item D-5 - Hold on advertisement of Warner Avenue until after October 6 meeting so that Magnolia Street can be' included. Action: Walt. 3. Item D-9 - Walt get together with Mrs. LeGaye for exchange. H. E. Hartge Director of Public Works HEH:ae 9/114 Distribution of Gas l Equipment is available to prevent the excessive escape of General Methods for Odor Estimation i vapors during this operation.For example,an odorizer may be t inserted as a by-pas,in the line leading to the LP-gas storage 1. One or more observers may smell the gas from an opened a valve. This is not accurate, as the amount of gas in air can. or shipping container.= Line pressure is used to drive a not be evaluated although a relative odor evaluation can.be pointed bar thru the tops of individual containers stacked in this odorizer.The liquefied gas is then passed thru the device, made. where it picks up the charge of odorant. After the product run 2. Chart gas leak complaints from customers on a per 1000 is completed, the by-pass valves are closed, the device is meter per month basis. This operating information will indi. opened, and the plunger and empty odorant containers are sate need for changes in odorant injection rate. The proper rate is affected by the season, other odors in the atmosphere, removed. neighborhood odors,sewers odors, smog,etc. Housing. Maintenance of odorant and odorizing equip- 3. Increase odorant rate for short periods and evaluate the ! ment at a reasonable temperature, avoiding extremes of cold and heat, will increase the accuracy of the odorant resultant increase in leak complaints received. introduction rate. At times of repair and servicing and of 4. Record volume of odorant used per day or per week and calculate the pounds of odorant used per MMCF of g,•u occasional leakage, odorant will escape from the equipment. sold. For these and other reasons man}- odorizers are housed in buildings." Such buildings should be as tiglit as possible Colorimeter Methods (for Amyl Mercaptan Only)ar and provided with blowers that pass all air leaving the building through a bed of activated charcoal which removes Pass 2.5 cu ft of gas thru copper oleate treated paper awl ` odors.This construction reduces odor complaints in the area expose paper to sun or other light for 15 min. Comparison of i and provides better working conditions for service men, resultant color (shade of brown) with. a Pentalarm color Disposal of Gas Vented from Odorizer. Tanks. When standard chart permits determining amount of odorant it is uneconomical to deodorize vented gases by activated present. charcoal, silica gel, or bubbling thru caustic solutions, Another method involves passing 3 cu ft of gas thru a mix- flaring may be used. The elements of one system21 to depres- ture of copper butyl phti.alate and n-butanol in an absorlx�r. surize a 250 gal odorant supply tank.at 250 prig included: The solution is then transferred to a colorimeter tube,exposed (1) regulation of the vented gas pressure to 30 psi- to a flare to ultraviolet light, and compared in a colorimeter with a burner located 40 ft from the "odorant tank; (2) combustion standard solution. Intensity of color gives results in terms of of the vapor (required 600 efh of 1000 Btu gas for 15 min); pounds of odorant per AI1ViCF. (3) electrical ignition of constant pilot; (4) combustion-draft arrangement consisting of a 22 in. diam pipe within a 30 in. The Austin Gas Titrator pipe,both 10 ft high. This titrator (Alicro-Path Inc.) is a lightweight, compact battery operated instrument for making analyses of sulfur TEST METHODS FOR DETERMINING odorant compounds in gas streams."It is used in the field lrc nontechnical personnel, as well as for research and control ODORIZATION ADEQUACY problems. Various classes of sulfur compounds are separatol Several test methods and instruments are available for by bubbling gas thru selective absorption solutions prior if, determining adequacy of odorization. A study26 was made titration. A complete analysis of odorant compounds in a ga-- of the characteristics of four instruments that can be used to stream is made in a matter of a few minutes at the sample analyze natural gas for sulfur compounds in trace concentra- site.The Titrilog is another commonly used titrator. tions. Three of these instruments, the-Titrilog, the Austin I BR 313 gas titrator, and the Beckman mercaptan analyzer, Odorometers depend on chemical reactions to measure sulfur content. Companies which have used odorometers, with var)i�C They cannot determine individual sulfur compounds. The degrees of success, include Oronite Chemical Co., San 1'rill- fourth instrument is a conventional gas chromatograph cisco,Calif.; Southern California Gas Co.,Los Angeles,(':I!:f • 4 equipped with an Argon ionization diode detector. This in- Consolidated Edison Co.,2e New York, N. Y.; Indn•t:�'! strument does appear capable of measuring individual sulfur Chemical Division of Pennsalt•Chemicals Corp.,a0 I'liil:o!c% compound concentrations at typical odorant levels. phia, Pa.; and Rochester Gas & Electric Co.," Roche". The A.G.A. Committee on Odorization established some N. Y. The principle of the odorometer is based on su1)l'1`:' odor level terms in 1055. These terms are applicable to the' accurate mixtures of up to two per cent gas in air at an out: t sensations detected by a healthy adult coming from the out- at which observers may smell the mixture. side air upon entering a room containing some escaped gas. Test Rooms No. Term Description Odor level impressions of a panel of six people enteril,9 0 Nil No change from ambient odor odorized gas filled test room of 500 or 1000 cu ft arc gent r'a 1 Threshold First change from ambient odor used for an odorant evaluation test (not for establi!. �'t ' 2 Barely detectable First recognition of odor of gas odorization rates or for field tests). Gas is usua111' a41i11"'' 3 Readily detectable Adequate recognizable odor of gas to the room until 0.5 or 1.0 per cent gas is present. 4 Strong IN-lore than adequate gas odor report the odor impressions at various gas levels. i } 3 j Gas Odorization 9/115 Table 9-45 Odor Levels of Typical Commercial Odorants'= Mir. Lb of odorant per MMCF of gas diluted recommended to 1%gas in air odorizing rate, Odorant Ib/MMCF Threshold* Recognitiont Warning$ Remarks a 9 P Captan 0.25-1.0 0.0014 0.0050 0.050 Rotten meat&cabbage—sulfide Captan .25-1.0 .0014 .0050 .010 Sour, meaty, and onion—mercaptans Alert 80 .50-1.0 .0035 .0100 .010 Eggy,sour,and putrid i Calodorant"C" 0.50 .0035 .0070 .014 Minty, garlic breath, eye and nose irritation Calodorant"C"Spec. 1.0 .0040 .0200 .080 Garlic breath,gassy,sour fi Spotleak 1008 0.25-1.0 0.0050 0.0140 0.050 Sulfide coal gas, metallic •First change from inherent room odor. t The point at which an odor becomes recognizable. :e:?►� Impact sufficient to arrest attention. A recent type of odor test room" is lined with 0.0025 in. A common wav of deciding on the optimum odorant rate aluminum foil sealed to Transite with sodium silicate. An air is to total the number of monthly leak complaints which flushing system takes air from inside the building thru a are due only to inadvertent release of gas, e.g., gas escape battery of activated charcoal canisters. A Gilmont Ultra- preceding ignition. Tolerances among company practices mieroburet is used to introduce odorant into the room. appear to be as many-as 3 to 45 leak complaints per 1000 meters ti By another method,'with the observers present in the room, per month, with the majority between 3 and 13, and the odorized gas is admitted at such a rate that a maximum con- average about 7 complaints per 1000 meters per month. centration of 1 per cent is realized when the entering rate y eq,.als the rate lost by normal air exchange. The required pDORIZATION PROBLEMS gas rate is 0.33 per cent of the room volume per hr.* For the gas to be considered adequately odorized,all observers should Fading of Odor detect the odor of gas soon after it is injected. A gas adequately odorized at the station may lose some of its ODORANT CONCENTRATION FOR DETECTION odor under certain conditions before it reaches all points in the system. Two factors may reduce the odor level. First, the ? Tests by trained observers in a closed room have demon- odorant may be chemically unstable, and thus prone to break strated that the warning level of various commercial odorants. down or to react-with materials in the.pipeline. Second, the i-reached with from%5 to 3-25 of the amounts recommended odorant may be physically adsorbed or absorbed by the pipe by the manufacturers under ideal test conditions (see Table wall or materials thereon. 9-15). Recognition level may be from %0 or more of the 1\lereaptans" are oxidized by hydrated ferric oxide (usu- amount for warning, and the threshol,; of smell is from j'' to ally-present in pipelines) to disulfides—compounds only about it of that for recognition. one-eighth as odorous as the parent mercaptans. If oxygen is The amount of odorant actually used in a distribution sys- present, iron oxide acts as a catalyst and the mercaptan is i tent usually falls within the manufacturef's recommended oxidized by the oxygen.to a disulfide. Because mercaptan range. However, in some instances the amount used will odorants are used in low concentrations, only low concentra- range from % of the minimum recommended to double the tions of oxygen are required for complete conversion. A given maximum.Reasons for these variations follow: amount of iron oxide will convert ten times as much mercap- 1. Condition and age of mains are a factor. Rusty, dirty tan to disulfides with oxygen present as without. rnains, as well as new mains, may consume considerable In odorizing for the first time, extra odorant should be odorant, added to compensate for odorant sorption by pipeline. Odor 2. Some odorants are more reactive with iron oxide and conditioning of new mains10 has been done with small by- other main deposits than others. For example, a high re- pass odorizers. Odorant has also been added in one slug or activity of mercaptans and iron oxide was suggested.15 Oil . from a drip pot that might feed for several days.Reduction of (from oil fogging) tends to be preferentially adsorbed; thus, gas oxygen content (when air is added to control heating the odorant is unaffected (or at least is less affected). value), use of a cyclic carbon-sulfur ring odorant, and oil 3.Some operating policies call for a highly odorized gas suf- wetting permit early odorant transmission thru new mains. 116CI t to make consumers report gas leaks even of nuisance Fading of odor within piping has reportedly been overcome hizc. In other cases just enough odor is preferred for identifi- by a-company which used oil fogging" and local injection of Cation of gas leaks. oil.Oil wet mains appear to maintain odorant better than dry l ' 4. Conversion from manufactured gas to natural gas may mains. wake it desirable to maintain the high odor level of the former Sorption by Soils. Odorants are absorbed in varying I Kits`_ degrees during passage thru different soils." Low molecular ""'lie atmosphere in the special test room thus contaminated weight, insolubility in water,and low oxidation rate are indi- (ct)"taining two doors and windows,with one of the doors and the cations of low soil sorption. Mi"'ho%Vs iii two outside walls, and with wind outside the room Varying from no wind to a slight wind)will be at approximately "Any gas with a strong odof leaking from underground h the'lower flammability limit of natural gas, pipelines will retain its odor to a great degree under ordinary 9/118 Distribution of Gas conditions. The extent of adsorption depends upon several passed thru a container of activated charcoal. The burner factors,some of which are velocity and volume of gas,porosity must be designed so that all vent gases pass thru the flame of soil, moisture content, type and concentration of odorant, and are oxidized to SOs, COZ, and I-I20.11 The odor threshold depth of gas line, and time of exposure. Numerous crevices, of S02 (about 4 ppm) is so much higher than that of a met- cracks, and voids usually exist,particularly in soil and backfill captan or organic sulfide (about 0.0002 ppm) that the latter surrounding gas lines. This condition permits leaking gas to odors are relatively insignificant.'0 Activated charcoal will usually escape with very little restriction or filtration. Leaks retain about 25 per cent of its weight in odorant.before it from underground lines are regularly being discovered by reaches saturation. From buildings housing odorizing equip. smell of oclorized gas expelled from the earth."" ment vents, gases can be discharged thru activated charcoal 4 It was concluded from a study"of the resistance of odorants to remove odors.21. s to soil adsorption that odorant selection should be based on _ general needs without undue emlihasis on resistance to soil adsorption. Factors evaluated in this laboratory study'of pure ,w soil compounds include space velocity,moisture in the gas and Counteracting Spills of Odorant . soil, oxygen and fogging oil in the gas, and iron oxide in the Potassium permanganate solution (one teaspoon per gallon soil. of water) is an effective oxidizer of mereaptan odorants; Chlorox, Purex, Dreft, Sharples Destenching Compound Corrosivity of Odorants (70% calcium hypochlorite), or sodium hypochlorite solu- tions (about 16 parts of water to one part of bleach) may also Copper and iron readily form sulfides, but they are only be used. However, both types of solutions are ineffective on slightly reactive with odorants at normal atmospheric tem- tertiary butyl mereaptan in ratios as great as 200 parts of peratures. A trace of hydrogen sulfide, however, may permit -� permanganate or hypochlorite per part of odorant. Never use f reactions at low temperature. Black copper sulfide has been these materials in powder form, since the heat of reaction found in copper services after a few years' operation by using with the odorant or other organic materials will cause violent. mereaptan odorant in the presence of traces of hydrogen combustion. About forty quarts of bleach solution are re- ' sulfide. However, at room temperature, common odorants quired per quart of mereaptan. are not generally corrosive. At elevated temperatures, such Activated charcoal is effective; the average heat of absorp. as may occur in pilot lines, burner boxes, or combustion tion is 250 Btu released (up to 1000 Btu per lb initially) per },.. chambers, odorants may attack copper and iron under suit- lb of odorant absorbed. Cover the spillage with a ss in.layer r able conditions. A thin film of copper sulfide forms on copper of charcoal on concrete (1 in.on soil),and allow to remain for t after many years of service. Aluminum, however, is not af- .; several hours. Remove charcoal and burn or bury it. Repeat fected. The degree of corrosion decreases in the following the operation if necessary. -. order of types of odorants:7 mereaptan; disulfide; thioether; Neutroleum gamma (Fritsche Bros., New York City), . carbon-sulfur ring. Internally tinned copper tubing, if kept Captan Wafto, and Airkem (_Airkem, Inc., New York City) well below the melting point of tin (440 F),would be resistant are aerosol sprays of highly effective odor neutralizer. They An to sulfur attack. Plain copper pilot tubing may be affected by do not react with odorant vapors, but change the odor to a rw stoppages caused by flaking oxide. nonobjectionable type. klercaptans undergo thermal decomposition to form hydro- Lime, iron oxide, vinegar, and acetic acid have also been gen sulfide at certain active points on the copper surface with used as counteragents (reduce rather than modify or mask consequent formation of copper sulfide.At room temperature, odor) for odorants. Masking agents—essential oils with hydrogen sulfide corrosion will form some copper sulfide even pleasant odors—may be applied in dilute kerosene or water at concentrations below 0.25 grains per 100 eu ft. At elevated solutions. temperatures, mercaptans actively attack copper and brass." Polysulfides, which are corrosive to copper, may be formed if the gas contains traces of hydrogen sulfide, oxygen, and mercaptans. Removal of one or more of the reactants will Treatment of Empty Barrels prevent formation of the Polysulfides. Amines work as cata- Residual odorant in barrels may be removed by achling 3 lysts in these reactions and increase the reaction rates. lb of Columbia "G" activated carbon (or its equivalent) to A study of the effect of sulfur in flue gases on corrosion of each drum. The bung is replaced for three or more days• gas appliance heating elements :ind flues indicated that the If the odor still persists,additional carbon may be added arnl corrosion of mild steel for both cyclic and continuous con- further sorption time allowed. The used carbon should densation is about equal. Under continuous heating at tom- buried or burned. The drum can be used for other purpg' peratures above the dew point, little or no effect was noted on after treatment. the corrosiveness of flue gas by the addition of sulfur. Use of potassium permanganate, sodium hypochlorite." 1 or other bleaches to eliminate odorants has also lx•en n•- E ported. However, handling these chemicals and disposing c'f DEODORIZING OR COUNTERACTING ODORANTS the odoriferous reaction products involved is cumk'r-law'• I Eliminating Odor from Vent Gases Steaming of drums and burning of the vent gases 11111Y 1" practical where appropriate facilities are available. C. ifirc:a' Vent gases from odorant storage tanks or run tanks,-dis- tanks large enough to permit truck or tank car sbiln"C"" charged when filling, can be burned with a gas burner or eliminate the barrel disposal problem. Gas Odorization 9/117 Removal of Odorant from Skin .18. Dormer, G. G. "Installing an Odorizer." Gas 30: 60-6, Sept. 1054. Use soap and water to remove odorant from the skin. For 19. Natural Gas Odorizing, Inc., Catalog. IIouston, Tex. 20. Peerless 1lanufacturin Co. Catalog. Dallas, Tex. further treatment, very weak potassium permanganate g 9• (strawberry soda color) may be used and then washed off. 21. Topaz Inc.Catalog.Houston,Tex. 22 Pennsalt Chemicals Corp. Pennsalt Gas Odorants. Philadel- «; The aerosol sprays mentioned above are also effective. phis,Pa When avapor-filled atmosphere must be entered,a suitable 23. Humphrey-Wilkinson Inc. Catalog. North Haven. Conn. respiratory device should be worn.The Mine Safety Appliance 24. Dugkley, IV. A. "New Gas Odorizer Buildings at Memphis." ' Co. Tank Gauger's Mask (GMC-SS-1 Connector) has been Gas Age 106: 13+. Sept. 14, 1950. F i 25. Manfred, N. A. "Waste Gas Burner Disposes of Gas Vented recommended. from Odorizer Tanks."Gas 29:56,June 1953.. 26. Tarman, P. B., and others. "Cortiparison of Instrumental w-{ REFERENCES Methods of Analysis for Odorants and Other Sulfur Com- pounds in Natural Gas." A.G.A. Operating Sec. Proc. 1961: - 1. Hilt,L."Chronology of the Natural Gas Industry."Am.Gas CEP-61-17. ' J.172:29-36, May 19a0. 27. White, D. L., and Reichardt, P. E. "Colorimetrie Tests for - 2. Senatoroff, N. K. "Odorization Practices." (PC-50-20). Determining Mercaptan Odorants in Natural Gas." Gas :I.G.A. Proc. 1950:684-702. 25:38-0,June 1949. 3. Katz, S. H., and others. Use of Stenches as a Warning in 28. Austin, R. R. "Automatic Recording Titrator and Its Ap- ,;?„ ,1[ines.(Bur.of dines T.P.24.1)Washington, D. C., 1920. plication to the Continuous Measurement of the Concentra- 4. Palmer C. S. Producer Gas Its Manufacture and Use." " tion of Organic Sulfur Compounds in Gas Streams." A.G.A. }. Engineers'Soc.of 111'estern Penna. Proc.34:357, 1018-19. Proc. 1049:505-15. R•; 5. Katz, S. H., and Allison,V.C.Stenches for Detecting Leakage 29. Coryell, R. L. "Gas Odor Test Equipment." A.G.A. Proc. of Blue Water Gas and Natural Gas.(Bur.of dines T.P.267) 1954: 714-20. Washington,D. C., 1920. 30. Nevers,A. D. "How Odorants Are Evaluated by Use of New li. I'ieldner, A. C., and others. Warning Agents for Fuel Gases. Apparatus."ant.Gas J. 182:20-3, Feb. 1955. (Bur.of Mines Mono.4)ti'ew York, A.G.A., 1931. 31. Gilkinson,R.W."Rochester Gas Develops a Portable,Light- 4.•y 7. Powell, J. S. "Selection of an Odorant for Natural Gas weight, Battery-Operated Odorometer." Gas 36: 67-9, Dec. Odorization." P.C.G.A. Proc. 41: 134-8, 1950. 1960. S. Pirone, P. P. "Natural Gas and Odorants Do Not Harm 32. Powell, J. S. "Experiences with Odor and Oclorization of Shade Trees."Gas age 125:31+, Mar. 17, 1960. Mideontinent Natural Gas."P.C.G.A.Proc.40: 191-4, 1949. 'J. East Ohio Gas Co., Cleveland, Ohio. Unpublished. 33. Joachim,J.L. "Gas Odorization Experiences." A.G.A. Proc. 10. Kendall, I).A.,and McIiinley, R.W.Development of Unique 195E 491-3.Also in Gas.4gc lOS: 19 } ,July 5, 1951. Odorants for Natural Gas: Final Rept. (Research Proj. PF-7) 34. Johnson, E. E. "New Developments in Odorants." (PC- New York, A.G.A., 1953. 50-21)A.G.A. Proc. 1950: 703-5. 1 _ _ 11. McClure, J. S. "Odorant Concentration as Compared to 35. Henderson, E. L. "Odorization of Gas." (OS 52-1) A.G.A.-~ Odor Intensity."A.G.A.Operating Sec. Proc. 1960:CEP-60- Proc.1952:29.1-303. .: ILI 10. 36. Tarman, P. B., and Linden, H.R.Soil Adsorption of Odorant s 12. McKinley, R. Wd Ltt, A. E. Stud o Cial , }� ., an arra ✓ f ommerc Compounds. (Research Bull. 33) Chicago, I.G.T., 1961. ' •-` Odorants for Natural Gas:Final Rept. (Research Proj. PF-7) 37. Kruger, H. 0., and Robinson, AL L. "Corrosion of Copper New York, A.G.A., 1954. Also 1955 and 1957 Supplements. by Trace Constituents of Natural Gas." P.C.G.A. Proc. 41: .. '� 13. Van der Pyl, L. '-NI. "Bibliography on Odorization of Gas." {CEP-59-11) A.G.A. Operating See. Proc. 1959: P109-10; 141-5, 1950. Suppl., 1961: CEP-61-1. 38. Pray, H. A., and otters. Corrosion of Mild Steel by the Prod- - 14. Cable, C. R., and others. "Properties of Natural Gas Odor- acts of Combustion of Gaseous fuels.(Proj.DGR-4-CH,Rept. ants."Am.Gas J.177:12+,Aug. i952. 2)Columbus, Ohio, Battelle Mcmorial Inst., 1949. 15. Miller, S. A., and others. Survey of the Chemistry of Odorant 39. Manfred, N. A. "Factors Involving Design of Odorizer •-•- Compounds. (Gas Operations Research Proj. PSI-34) New Installations." A.G.A. Proc. 1953: 711-5. York, A.G.A., 1961. 40. Turk, A. "Odor Control in Gas Odorization." (CEP-55-4) 2:"• 16. Rader A. M. "Odor Conditioning of New Gas Mains." A.G.A.Proc. 1955:822-8. (CEP-55-7)A.G.A. Proc. 1955:836-9• 41. Olund, S. A. "Odorant Fractionation in By-Pass Absorption 17. Hills-McCanna Co. Catalog. Chicago, Ill. Odorizers," Am.Gas J. 100:36-42, Oct. 1063. F, 114 Li i y Trac Ji �v�� f3tncce l� PRELIMINIARY FOUNDATION 50ILS INVESTIGATION ai PROPOSED APARTMENT COMPLEX LESLIE DRIVE - SOUTH OF WARNER AVENUE r HUNTINGTON BEACH, CALIFORNIA FOR W - B ASSOCIATES 1345 SKYLINE DRIVE LAGUNA BEACH, CALIFORNIA August 3, 1971 File No. 71 - 4655 H. V. LAjti'MASTFR (W' CO, INC TESTING &- INSPECTION ENGINEERS , St�i1�B� H. V. LAN1AAST'-R, r.:,e.•, t M WILUAM T. C(,RUM, J7 � JOHN K. FAR' EST. NNes. B S G=n I.CC,r .I L ster co., inc. T E S T I N G A N D IN SPECT ION E N G I N E E R S (714) 829-9040 August 3, 1971 I i 7940 MAIN STREET STANTON. CAL. 90680 W - B Associates 1345 Skyline Drive Laguna Beach, California File No. 71 -_ 4655 Gentlemen: Attached herewith is our report of the Preliminary Foundation Soils Investigation conducted on the site of the Proposed Apartment Complex, located on the east side of Leslie Drive, south of Vlarner Avenue, in the City of Huntington Beach, California. This investigation was planned and carried out in accordance with plans and other information submitted to this; office and in accordance with (food, accepted engineer- ing practise. Evaluation of the site conditions has been made; with regard to the probable grading of the site and to the structural aspects of the proposed building. Respectfully Submitted, H. V. awmaste Co. , Inc. L L I A H. Lawmaster VA 1 iam Cb t1 lF � rum � R C.E.No.,4.207 6207 a T~ OF4,A0E�� \ i PRELININt,RY FOUNDATION-SOILS INVESTIGATION i PROPOSED APARTMENT COMPLEX LE`iLIE DRIVE - SOUTH OF WARNER AVENUE HUNTINGTON BEACH, CALIFORNIA SCOPE ` i The purpose of this investigation was to determine the subsurface soil conditions f and provide engineering recommendations for grading of the site and for safe, ` economical foundation systems for the proposed structures. STRUCTURAL CONDITIONS It is understood that the proposed apartment structures will be one and two stories in height of wood frame construction, with slab floors on grade, and will be supported by continuous footings. tNo load .nn information is available to this office, ho:'iever it has been assumed that maximum loads on continuous footings will be on the order of 1 to 2 kips perlineal foot. SITE CONDITIO`dS At the time of this investigation, the subject site was being utilized for horse stables with numerous corrals and pens. There is one existing dwelling in the north portion of the site which may be serviced by a private sewage disposal system. There is a considerable amount of organic waste material in the corral areas that will have to he removed. Vegetation on the site consists of a sparse to medium growth of native grasses and weeds with several shrubs and trees scattered over the area. Topographically the site slopes in various directions at variable degrees. The southeast portion of the site is occupied by a small hill approximately 10 to 20 feet higher than the north and westportion of the site. Page 1 H. V. LAWMAS,�,:,1, :. ., & CO.,INC. Fill material composed of clean sand, clayey sand and sandy clay was encountered in Borings 1 , 2, 3, and 5 to depths of ,approximately 2 to 6 feet. The upper trio feet of fill is in a variable state of core action, however, the fill below a depth of 2 feet appears to be uniformly compacted to an adequate density. The upper two feet of fill material and the surface 12 to 19 inches of natural soil over the rest of the site is in a variable state of compaction and is not considered to be adequate f for support of foundations, slab floors, or imposed fills in its present condition. Natural soils encountered below the fill in Borings 1 , 2, 3, and 5, and at thelsur- face in Boring No. 4 consist of alternating layers of clean sand, Silty sand, sandy clay, sandy silty clay and clayey sand throughout the depths explored. The materials correlate fairly well between borings and display uniform density conditions below the surface fill, ranging from fair to good. Thn moisture content is uniform over the site, with the soi).s generally showing normal moisturr =ontents throughout. No ground water was encountered in the test borings, to the depths explored, on the date of drilling. Ground water conditions will not affect design of foundations or slab floors, grading of the sits; nor installation of utility lines. REC011,1ENDATI'QN5 The following recommendations ary Lased on observations made in the field; on the results of laboratory tests or, sanplTz of th:: materials encountered; and on overall evaluation of the site conditions. Grading On the basis of the conditions des,-rived abcve, a slight to moderate amount of grading will be required to develo::) th!: site and will consist of cut and fill operations involving site materials. All gr:3(j.inc nhould be done in accordance with the following recommendations. Prior to grading, the site should Le cleer-d of all organic or dele ter ious^eterial. Clearing operations should include remt.�v3l o' all surface vegetation; removal of the existing structures to include fouridat:one_ and slats; and removal of organic waste material. Any septic tanks or cesspof.)s encountered should be excavated to a depth of five (5) feet, filled with approvf;c: and covered with compacted soil. Underground metal lines should be re•-miv—,- c-n i any concrete or tile lines should be removed, or exposed, crushed in place, -3n , co.tered with compacted soil. F 2 H. V. LAWMASTF CO.,INC. After clearing, all individual building areas should be over - excavated to a ` minimum depth of two (2) feet below existing grade, with the excavation extending 10 feet outside building lines. The exposed surface should then be scarified 3n additional 6 to 0 inches, watered, recompacted to at least 905z. relative compaction. The excavation may then be refilled with compacted soil composed of clean site material or approved import soil. It is noted that for any building areas which will be cut below finished grade, the recommended depth of over - excavation may ( be adjusted in accordance with the planned depth of cut. i All fill material should be composed of clean site material or approved import soil placed in 4 to 6 inch layers, watered to approximate optimum moisture, and compacted to a minimum relative compaction of 903. All parking areas and any other areas to receive fill, should be scarified ten (10) to twelve (12) inches and recompacted to at least 90% relative compaction to provide a bond between the existing soil and the superimposed fills, and to provide an adequate subbase for the proposed pavement section. Determination of relative compaction shall be based on Test Method ASTM D1557 - 70. All clearing and fill shouli he supervised by the Soils Engineer and certified at the conclusion of the grading operations. Foundations Continuous footings may be utilized to support the proposed structures, under the following recommendations: All footings f:hou.ld be e)iLec;ded at least 12 inches below finished grade ! for one story structures3 an! 15 inches below Finished grade for two story structures. All footings should rest un: (1 ) natural, undisturbed soils approved by the Soils Engineer; (2) natural soils recorepa--ted to at .Least relative compaction; or (3) compacted fill co:npo:;e ! of :.Lean :;i ce materials, or approved import soil. A safe bearing value of 2000 pounda per s--.care foot may be used for the recommended hearing soils below cont;_nuous fr.o•.ings placed as above. FaJ 3 H. V. L.AWMAS"ER & CO., INC. SOIL CHARACTERISTICS Settlement Uniform settlements under the recommended loads are not expected to exceed one - half (112) inch. Differential settlements under the foregoing recommendations are expected to be minor. i Exaans?_on The clayey sands and sandy clays which occur over portions of the site are considered to be slightly to moderately expansive and this condition may require special :rein- forcement of footings and slab floors. Since grading operations can materially alter the expansive characteristics of the soils, it is recommended that the expansive soil conditions be re-evaluated after grading is completed, with the results of such re-evaluation, along with appropriate recommendations to be incorporated in the Final Compaction Report. Shrinkage and Subsidence The shrinkage expected to occur in placing the surface 2 feet of materials as compacted fill is estimated to be on the ord^r of 15; to 205. The subsidence expected to occur in preparing areas to be filled is estimated to be on the order of 0.1 to 0.2 foot. SPECIAL CONDITIONS Utilitv Line Backfills The sand materials occurrina over the site will provide a satisfactory backfill for utility trenches, however the clay materials may be difficult to compact to the proper density. The sand materials may be jetted into place with supplemental com- paction by mechanical compactors however the clay is not compatible with jetting operations and compaction should be obtained by placing in thin lifts and compacting by means of mechanical compactors. Pare 4 H. V. LAWMASTE , & CO.,INC. i i The compaction requirements for utility line backfills are as follows: 1 . 90% Compaction or better a. Under all slab flours b. 'r+ithin 5 feet of any structure foundation c. Under sidewalks or other areas of exterior flatwork i d. Under all areas to be paved,curb and gutter 2. 02N Compaction or better ` a. In all landscaped areas not include in b and c above Pavement Sections Pavement sections for alleys, parking, and streets shall be established on the basis of "R" Value Tests on representative samples of subgrade materials, after grading operations are complete. P- nr 5 . H. V. LAWMAST%h & CO.,INC. APPENDIX Plate A - - - - - - - - - Plot Plan Plate D thru F - - - - - Test Boring Loos Plate G thru N - - - - - Consolidation Tests i The following appendix contains the substantiating data for the engineering recommendations of this rcoort. Exploration On July 27, 1971 , five (5) test borings were drilled on the subject project at the approximate locations; shown on the attached plot plan. The borinns were 20 inches in diameter and were drilled to depths of 15 to 20 feet by means of a rotary bucket type drill rig. Sampling A representative of this office directed the exploration and determined the location of both disturbed and undisturbed namples of the materials encountered in the test borings. All samples were scaled when taken to prevent loss of moisture while in transitito the laboratory. Testing All samples were visually classified and a testing program was established to provide data for the engineering recommendations. Tests performed include: Field [Ioisture and Field Density Determinations; Maximum Density - Optimum Moisture Relationships; Field Density Tests of Surface Soils; Consolidation Tests; and Direct Shear Tests. TEST RESULTS Field Moisture and Density Determination of field moisture and field density conditions in subsurface soils are incorporated in the Test Boring Logs attached hereto. Maximum Density D timum Moisture Relationships Compaction Standard: Test Method ASTM D1557 - 70 Pane 6 H. V. 1.AWMASTF R & CO., INC. Soil Classification _Iaximum Density "PCF Optimum Moisture '% 1 . Brown Very Fine to Medium Sand 123.8 12.5 2. Dark Brown Sandy Clay 125.0 13.5 Field Density Tests - Surface Soils APPARENT V!et Density `,,, Field Dry Density Depth RELATIVE Test No. Location PCF Hbisture PCF of Test COMPACTION 1 TH - 3 105.0 9.3 96.1 12" 77.6 .1 2 TH - 4 111 .2 9.9 101 .2 It ^u1 .71 3 TH - 5 120.4 12.4 107.1 a5.7 Consolidation Tests Results of the Consolidation Tests are presented graphically as Plates G thru N of this report. Direct Shear Tests Sample \ncle Cohesion PSF Dry Density PCF TH - 1 " 2.0' _ 60 92.3 TH - 1 C 5.0' ?5 ' -0- 99.3 TH - 3 2.0' 0 90.4 TH - 4 2.0' 7 -L- 117.3 TH - 4 '` 5.0' 3 ! -G- 102.7 TH - 5 5.0' 3,'." -0- 114.6 Page 7 H. V. LAWMAS F-P & Co.,INC. i H -5 NORTH Or;1iVr3,�R AV�j -. H-3 TN i TH -2 -- T fI j SCALE: r� �DJ ' SHEET f 7 �'/ / FILE No. =j- DATE: 7 / ( of ! PROJECT . :f' 1 { TEST BORING LOG TH — 1 Soil Classification Moisture Dry Density PC F U.S.C. . 0.0 Dk.Brown Very Fine to Medium Sand 11 .7 (Fill) 2.0 �,(, Brown Very Fine to Medium Sand 7.0 92.3 3.0 Brown Silty Very Fine Sand (Nat. ) 25.8 ; ML 1 i 5.0 Same 22.7 99.3 6.0 Same 25.0 8.0 Same 23.2 10.0 Brown Clayey Very Fine to Fine Send 22.7 108.3 ML 11 .0 Brown Sandy Silty Clay 20.5 CL 13.0 Same 22.0 15.0 Grey Sandy Silty Clay 22.0 CL 16.0 VERTICAL SCALE: 1 " =,4 ' U.S.C. — Unified Soil Classification Denotes Undisturbed Core PLATE "B H. V. LAWMAS._.. & M., INC. TEST BORING LOG TH - 2 Soil Classification % Moisture Dry Density PCF U.S.C. 0.0 Black Very Fine to Medium Sand 36.1 (Fill) 2.0 Brown Clayey Very Fine to Medium 13.0 109.4 SC Sand (Nat. ) 4.0 ® Brown Very Fine to Medium Sand 7.0 SP 102.3 ! I 6.0 Brown Fine to Coarse Sand 4.2 SP s 8.0 Light Brown Fine to Coarse Sand 3.6 SP O 10.0 ® Same 3.1 100.4 11 .0 ® Same 4.2 • 13.0 Same 3.6 15.0 Brown Silty Very Fine Sand 20.5 ML 16.0 Same 25.8 18.0 Brown Very Fine Sand 20.5 ML 19.0 Brown Silty Very Fine Sand 23.4 ML 20.0 W/Trace of Clay PLATE = ' H. V. LAWMAST` 'Cl, CO.,INC. TEST BORING LOG TH - 3 Soil Classification % Moisture Dry Density P F U.S.C. 0.0 Brown Very Fine to Medium Sand (Fill) 81.7 2 0 `� Reddish Brown Sand Clay 12.4 98.4 _ l Y Y 3.0 . . . Black Clayey Very Fine to Fine Sand 14.3 AL 5.0 �/I y U. Dark Brown Very Fine to Medium Sand 13.6 120.6 i 6.0 Brown Clayey Very Fine to Fine Sand 9.3 ML 8.0 Brown Sandy Clay 14.9 CL 10.0 Same 13.0 117.3 12.0 Same 12.4 14.0 Brown Clayey Very Fine to Medium 12.4 SC 15.0 ® o Brown Very Fine to Medium Sand Sand 9.9 SP 16.0 PLAT- "D" H. V. I.AWMASTF' -% & CO.,INC. TEST BORING LOG TH - 4 Soil Classification % Moisture Dry Density PC-_ U.S.C. 0.0 Organic lWaste Material 0.6 Black Very Fine to Medium Sand 10.5 SP 0 2.0 ! Brown Very Fine to Coarse Sand 9.3 117 .3 SP I 4.0 ® Same 5.3 ® 102.7 6.0 Light Brown Very Fine to Coarse Sand 3.6 SP 8.0 ® Same 3.6 10.0 �� Reddish Brown Very Fine to Coarse Sand 2.6 SP 11 .0 ® Brown Sandy Silty Clay 19.1 CL 12.0 Brown Silty Very Fine to Fine Sand 17.0 ML 13.5 ® Reddish Brown Very Fine to Medium Sand 5.3 SP 15.0 PLATE "E" H. V. LAWMASTI & CO.,INC. TEST BORING LOG TH — 5 Soil Classification % -Moisture Dry Density P--F U.S.C. 0.0 Dark Brown Sandy Clay (Fill) 12.4 2.0 1v ' Brown Sandy Clay 14.3 120.7 3.0 � Reddish Drown Sandy Silty Clay (Nat. ) 17.7 CL I 5.0 Brown Sandy Silty Clay 13.6 114.6 CL i 7.0 Brown Very Fine to Fine Sand 8.1 ML 8.0 Brown Very Fine to Medium Sand 3.1 SP 10.0 0 Same 2.0 98.5 A � 12.0 Same 2.0 14.0 Light Brown Very Fine to Medium Sand 2.0 SP 16.0 Same 2.6 9 18.0 Same 2.0 • 0 O 20.0 o PLATE "F" H. V. LAWMASTi.'R CO.,INC. CONSOLIDATION TEST —� TEST SAMPLE DATA ' Test Boring -------"-------------no. 1 Depth ---------------------------2.0 Ft. Soil Type ------••-------------- Sand v m Field Dry Density ------------ 92.3 PCF �v n — Field Moisture ---------------7.0 % Z Saturated Moisture -. � 20.4 % File No. 71 71 - 4655 � o - =a � I m n , O _ Z O .13 G Water D ( Added < O r Z � 1 Peboun .-t m n -_ 0 500 1000 1500 2000 2500 3000 "- — 3500 4000 Z n UNIT LOAD . . . . POUNDS PER SQUARE FOOT CONSOLIDATION TEST TEST SAMPLE DATA Test Boring ---------------------P!o. 1 Depth 5.0 Ft. Soil Type Silty Sand m Field Dry Density ------------ 901.3 PCF M n1 Field PJtoisture ---------------" 22.7 m Z Saturated Moisture ---------- 27.1 File No. 71 - 4655 r OZ 0 m n O Z CA O r v 1 D Water Added c O Z a 2 Rebound' R n O 0 500 1000 1500 2000 2500 3000 3500 000 n UNIT LOAD . . . . POUNDS PER SQUARE FOOT CONSOLIDATION TEST TEST SAMPLE DATA Test Boring ...................... No. 2 3 Depth --------------------- -------2.0. Ft. Soil .Type __Clayey Sand mField Dry Density ------------ 109.4 PCF ;a n -2 Field Ntoisture ---------------- 13.0 -J10 m Z Saturated Moisture ---------- 20.4 % o File No. 71 - 4655 n n O •: Z N Rebound O r 0 v D C O r. Water Z Added � 1 cn - m n 0 0 500 1000 1500 -. 2000 2500 3000 _ 3500_ 4nnn _ z n UNIT LOAD . . . . POUNDS PER SQUARE FOOT CONSOLIDATION TEST TEST SAMPLE DATA Test Boring No. 3 --------------------- 0 Depth ----------------------------- 2.0 Ft. JWater Added Soil Type ------------Sandy-.Clay m ' Field Dry Density 99.4 PCF ;o n 2 Field Moisture ---------------12.4 m Z ! Saturated Moisture .......... 21 .3 n File No. 71 - 4655 o O Z � N ' O 6 v D < O i-. Z a � 9 m x Rebound n O 0 500 1 000 1 500 - 2000 2500 3000 --- --- 3500-- - ;nnn Z n UNIT LOAD . . . . POUNDS PER SQUARE FOOT CONSOLIDATION TEST TEST SAMPLE DATA Test Boring ---------------------No. 4 Depth -----------------------------2.0 Ft. Soil Type ----------------------- Sand M m Field Dry Density -----------117.3 P0F 70 n Field Moisture ---------------- 9.3 m Z Saturated Moisture .......... 15.0 d -r - File No. 71 - 4655 m [1 O Z W O v D � O t. Z > Rebou d Added x n O 1 0 500 1000 1500 2000 2500 3000 3500 4000 L n UNIT LOAD . . . . POUNDS PER SQUARE FOOT CONSOLIDATION TEST TEST SAMPLE DATA Test Boring - 4 Depth --------------------- ------- 5.0 Ft. Soil Type -------------------- • - Sand mField Dry Density ............ 102.7 FCF� m - Field Moisture ...............5.3 m ( I ? I I Saturated Moisture ---------- 19.2 % # I I File No. 71 — 4655 v m n + r O Z L O r _-4 < O 1Jater r" Z --Added > � c 1 Rebound+., rn n O 1 0 500 1000 1500 2000 2500 3000 3500 4000 L n UNIT LOAD . . . . POUNDS PER SQUARE FOOT CONSOLIDATION TEST TEST SAMPLE DATA Test Boring No. 5 Depth ----------------------------2.0 Ft. Soil T Sandy Clay mField Dry Density ---------.-120.7 PCF M n Field Moisture ...............14.3 m z Saturated Moisture ---------- 16.9 o File No. 71 - 4655 -a —2 m n O Z 3 N = O -1 < O Rebound I r Z 0 CNater w Added O 1 0 500 1000 1500 — 2000 2500 3000 -- -- 3500-- 4000 Z n UNIT LOAD . . . . POUNDS PER SQUARE FOOT ti CONSOLIDATION TEST TEST SAMPLE DATA Test Boring ---------------------No. 5 Depth ----------------------------- 5.0 Ft. Soil Type Sandy Silty Clay . . ---- ------ mField Dry Density ----------.1 1 c .6 PCF �v n Field Moisture 13.6 5; m Z Saturated Moisture ---------21 ..'_ File No. 71 - 4655 m n O z Z O 0 v D ' G O Raboun water Z Added / � 1 m ay s� O 2 0 500 1000 1500 2000 2500 3000 _ _ 3500 000 Z n UNIT LOAD . . . . POUNDS PER SQUARE FOOT t GMILTS S•E-a.. C9xt G I•d qc G2evDrt e' BOLSA CHICA MESA WATER QUALITY STUDY fy.At A. INTRODUCTION On November 6, 1973, .the Orange County Water District requested that James M. Montgomery prepare a brief water quality study of ground water problems in the Bolsa Chica Mesa area of Huntington Beach, OCWD Task Order No. 6- 1140-47-74 (JMM Job No. 116. 11). These studies were undertaken in part because of the marked changes in mineralization at well 5S/11W-20K3 (Mrs. J. Campbell, 16632 South Delores, Huntington Beach, California). Work on the task was to include the collection of available background material including lithologic logs, water level and water quality data in the Bolsa Chica Mesa area. Specific task activities are outlined ( as follows: Review existing reports. Review historic water levels and water quality variations in the principal or pertinent aquifer zones. Evaluate source or sources_ of water quality impairment. Present findings in a brief letter report to include the definition of 1 water quality problems, findings and conclusions relative to the Tu� source of impairment, an outline of possible solutions or remedies, 1 I and recommendations for further investigations, testing and/or nit rn mo i o g. •� i I - t f CONDUCT OF THE STUDY f In order to develop an understanding of past and present ground water quality features in Bolsa Chica area, basic hydrologic data was collected ' from the District's files and from the California Department of Water Resources and Orange County Flood Control District. Geologic sections F • or profiles were drawn of the multi-layered aquifer system and hydrographs of water surface elevations in several of the principal aquifer zones. 3 Ground water analyses for five aquifers were reviewed and selected wells were resampled and waters analyzed. The history of waste disposal at the Bolsa Chica (Boucher) dump was reviewed and records of taste and odor problems in adj ace nt'water.wells were studied. Results of these studies are described in this report, and are depicted on the attached Figure 1 and on Plates 1 and 2. As denoted later in this report, subsurface hydrologic and water quality i conditions in the Bolsa Chica Mesa area are complicated by the geologic structure, and by the existence of numerous separate and individual aquifer zones. These include from the surface downward the Semiperched, Alpha, Beta, Lambda, Meadowlark, Main and "Lower Zone" aquifers (Plate 2). For convenience in evaluating present and future ground water quality problems, wells of major interest .in the area have been classified relative to producing zone. These wells are listed in Table 1. HISTORY OF WATER QUALITY DETERIORATION The period from about 1937 to 1945 was a time of above-normal precipitation on the Orange County coastal plain. Water levels in the Bolsa Chica area were generally above sea level due to increased recharge in the coastal VJ plain forebay area. After 1945, pie-zometric levels began to decline as a result of an extended period of predominantly subnormal rainfall. Ground water levels were lowered to elevations below sea "level and remained generally below sea level from the early 1950's until 1964. -2- f � In early 1949, sea water intrusion was noted beneath Bolsa Chica Mesa in the Alpha and Beta aquifers (Well 5S/ 11W-29C4. Saline waters had moved inland across the Newport-Inglewood fault zone under the reversed hydraulic gradient (see Plate 1). By 1955, saline intrusion had moved 3 inland about 2, 400 feet (5/11-20M) in the Alpha aquifer, and pressure i levels in the Alpha had declined r locally to .35 feet below sea level. As a result, intrusion increased rapidly across the Newport-Inglewood fault in the Alpha and Beta aquifers. However, the Bolsa-Fairview fault limited ? the saline advance once the intrusion front had reached that fault. Fortunately, the underlying Main aquifer was not found anywhere to be intruded and maintained chloride ion concentration of less-than 25 mg/l, even at its 7"' seaward-most extent near the Newport-Inglewood fault. After about 1964, rising ground water levels associated with increased forebay recharge resulted in the seaward retreat of the intrusion front and local wells in the Alpha aquifer .experienced a decline in chloride ion concentration. However, as shown on Figure 1, ground water levels in the Alpha aquifer on Bolsa Chica Mesa again began a general decline in late. 19'69 and 1970. } Taste and odor problems associated with the disposal of liquid wastes on 7 1 J' Bolsa Chica Mesa have been observed to cause significant local ground quality water problems. Based upon files contained in the Orange Count r q YP P g Y Water Pollution Department and the California Department of Water Resources., waste liquids were discharged at a number of sites on Bolsa Chica Mesa 7! during the development of coastal oil fields along the Newport-Inglewood i structural zone. !, Perhaps the most conspicuous and well-documented disposal site is i the so-called Bolsa Chica Dump, located in a canyon about 1, 000 feet f southeast of Warner Avenue and Bolsa Chica Road. The area is now , designated as the "Bouche-r Dump" on Plate 1. The dump was originally 7j -3- I I a northeasterly trending canyon in the mesa which had formed from erosion and ancient spring-flow. Prior to 1950 the old canyon was enlarged as a gravel pit, while simultaneously being used as _a site for the discharge of refinery waste, acid sludge and other oil and chemical wastes. The presence of these substances in subsurface sediments around the dump was verified by Blakeley in 1950. Nine test holes were drilled at that time and more than 200 samples of soil and water were collected and analyzed. From those samples, local sediments and ground waters were found to be significantly degraded in terms of total dissolved solids sulfates color and odor. Odors g , from samples were described as "earthy", "gasoline range hydrocarbon" and "foul chemical". These odors within the sediments extended to about 40 feet below ground surface. In 1953, Steverson Bros. Inc.. was granted a permit to discharge fresh, clay-base rotary drilling mud in the same disposal site. However, in 1955, samples of waste liquid in the disposal pond exhibited total dissolved solids of 4, 099 mg/l,, a pronounced sodium sulfate character and strong petro- leum odors. The same year, a water well west of the old dump beganto produce ground waters with a gaseous ("gassy") odor and petroleum or garlic taste 1 (5/11-28D4). Increasing numbers of shallow domestic water wells to the north ^J and west also pumped ground waters with gaseous, petroleum or garlic odors between 1955 and 1965. Discharged waste liquids had apparently reached the zone of saturation and had moved northward under a landward hydraulic gradient. In 1961, odor constituents in Well 28D4were identified in laboratory analyses (Terminal - DWR) as 0. 6 mg/l Mercaptan Sulfur, and acetylene. Ultimately, 1 waters from more than 12 shallow wells near the dump were to exhibit similar I '1L. E. Blakeley, "Progress Report on Bolsa Chica Dump", December 4, 1950 (Orange County Water Pollution files). r-� -4- taste and odor problems. These wells are listed on Table 2; their location and the extent of the odor problem is shown on Plate 1. In 1963 the Bolsa Chica Dump was reclassified to receive only inert solid.waste materials (Class III), such as earth, rock, glass, concrete etc. The last report on the occurrence of gaseous, garlic odors in ground water was made in 1965. In shallow wells such as 28D4, quality improvements seem to have resulted from the re-establishment of a seaward hydraulic gradient in the late 1960's (Figure 1). In man other wells, data is not g ( g Y available because periodic sampling and well monitoring were almost completely discontinued in the late 1960's. The results of past disposal of brine to the ground surface has also been observed near Warner Avenue and the Newport-Inglewood fault (south branch), and near the intersection of Warner Avenue and Algonquin Road. Discharged liquids were of high salinity (+30, 000 mg/l, TDS) and locally exhibited a petroleum-like odor. It is considered likely that numerous other oil brine discharges were made periodically to the Bolsa Chica Mesa surface during the development of the Sunset Beach Oil Field. It should be noted that natural sulfur tastes and odors, and amber color have long been associated with deeper waters from the lower Pleistocene sediments (Main and Silverado aquifer zones). These conditions have occurred in deep wells along the Newport Inglewood uplift from Costa Mesa to Long Beach and are considered to be native to those aquifer zones. As shown on Plate 1, numerous wells on the mesa have been abandoned or destroyed; in part because of quality problems including taste, odor and salinity. It is estimated that within Sections 20 and 29 alone, more than -5- 50 shallow water wells were abandoned between 1950 and 1973.. The availability of imported supplies and the current rapid change in land use from agricultural and suburban to urban multi-unit type developments will probably result in the ultimate destruction of most of the remaining S shallow domestic wells (unless some of these wells are preserved for monitor- ing purposes). CURRENT CONDITIONS • i In the Bolsa Chica area, ground waters within the shallow Semiperched aquifer are locally in hydraulic continuity with saline bay and harbor waters, and have f exhibited a general increase in chloride ion concentration landward of the Newport-Inglewood fault zone since 1965. This trend is most t � pronounced at 20E4 (HH-2C) where concentrations have increased a from 400 mg/l in 1965 to 11, 663 mg/1 in 1973. Smaller increases have also occurred in Well 20M5 (BSO-6D), 20N3 (HH-4C), 29C7 (HH-5C) and 29C8 (HH-5D). Slight improvements in quality occurred at 20M8 and 20N4. These changes in the Semiperched zones have little effect upon the underlying Alpha aquifer because these two aquifers do not appear to be hydraulically connected locally. In the Alpha aquifer between the Newport-Inglewood and Bolsa-Fairview faults, y quality trends have been mixed, showing both increase and decline of chloride ion concentrations between 1965 and 1973. However, just seaward of the Bolsa- ;# Fairview fault, waters from several wells have risen markedly in salinity since 1965. Well 20Q5 and 20Q11 have increased from 3, 872 to 7, 196, and 65 to f 298 mg/l, respectively. An adjacent well, 20Q3 which produces from the same aquifer just inland of the fault, remained about constant from 1965 5. to 1973 (241 to 267 mg/l chlorine ion). To the northwest, also just inland i f +. of the fault, water from Well 20Q6 has increased from 65 to 290 mg/l in chloride ion concentration. Test wells within the Alpha aquifer adjacent to -6- Huntington Harbour (inland of the Bolsa-Fairview fault) have exhibited increases in chloride ion concentration from 15 to 78 mg/l (20E6) and 40 to 202 (20E5). Records of ground water analyses at the Campbell well (20K3) are available for the year 1961(1), 1964(2) and 1973(4). Analyses in 1961 .and 1964 indicate that the waters in the Alpha aquifer at that location were of excellent mineral quality with total dissolved solids below 300 mg/l, chlorides of 13 to 16 mg/1 and nitrate concentrations of less than 1 mg/l. However, in June 1973, chlorides and nitrates had increased to 489 mg/l and 13. 5 mg/l, respectively. Subsequent analyses in August, November and.December, 1973, showed 1� progressively increasing chloride values of 720, 850 and 929 mg/l. Nitrates /l reached a high of 37. 4 m /l in November and declined somewhat to 27 m . � g g g t, in December, 1973. Tastes and odors were also associated with the decline wa ter ater quality from this well during the summer of 1973 but had dissappeared 9 j by late in the year. In November, 1973 analyses showed a total absence of mercaptans (0. 00). ,i Wells adjacent to the Campbell well (201<8 and 20K9) in the Alpha aquifer also have produced native, good quality ground water. Well 20K8 located about 300 feet south of the Campbell well was sampled in 1961, 1962 and ` 1963, and again in July and November of 1973. It has maintained low salinity, calcium-sodium bicarbonate character and low chloride and nitrate concentra- tions (12 and 1�0. 22 mg/l, respectively). Well 201<9, about 350 feet south- west of the Campbell well, on the bases of eight samples, maintained a similar excellent quality water from 1961 to 1970 with total dissolved solids, chloride and nitrate concentrations averaging 245, 15 and less than 1 mg/l, respectively. The well is not now active, but should be resampled in early 1974 if the pump and pressure system are repaired. -7- (YY . In 195.4 a small domestic well tapping the Semiperched zone (65 feet in depth) was drilled at a location about 200 feet west of the Campbell well. . � The shallow well was sampled five times between 1961 and 1964. During that period, analyses show the Semiperched zone waters to be significantly C, �. more mineralized than the underlying Alpha aquifer with total dissolved f 1 A solids ranging from 1, 400 to 2, 284 mg/l, chlorine ion content from 455 to 714 mg/1 and nitrate concentrations from 7. 4 to 30 mg/l. An increase in nitrate concentration is generally not associated with marked Jincreased in chloride ion concentration in ground waters degraded by sea water intrusion. For example, wells 20M2, 20M6, 20N1, 29C5 and 29C6 have all yielded ground waters from the Alpha aquifer with chloride r concentrations exceeding 10, 000 mg/l, but all exhibit nitrates of less than 0. 22 mg/l. Similarly, analyses of the saline waters from the ocean and from the tidal sloughs in the Bolsa-Sunset area Table 3 exhibit essential) � g ( ) Y no dissolved nitrate. Nitrate concentrations exceeding 10 mg/1 appear to be associated solely with surface and shallow Semiperched waters, such as the former Huntington Harbour spring designated 20ES-2, and wells 101311, 20K2, 20M8, 20N4 and 29C8. CONCLUSIONS Based upon the evaluation of basic water quality data described in this t letter report, the following general conclusions have been made: A 1. With the decreasing values of the ground water "recharge to extraction" ratio in the coastal plain since 1970, a landward hydraulic j gradient has been locally reestablished in the Alpha aquifer. As a result, the potential for sea water intrusion again exists in the Bolsa Chica area. - _8_ E_w 1 i 2. Salt water intrusion is occurring in the Semiperched aquifer as measured at five test piezometers along the eastern margin of Huntington Harbour. This situation was anticipated at the time of the marine excavation and was considered to pose no real threat to the underlying fresh waters in the Alpha aquifer. 3. Current (1973) mineral quality data from the Alpha aquifer indicate �- that inland of the Newport-Inglewood fault zone, sea water intrusion is occurring in the aquifer. This intrusion appears to be moving horizontally inland and not originating from downward percola- tion of overlying saline waters. 4. Chloride ion concentration increases at Alpha aquifer wells 20E5, 20EC and 20Q6 suggest that ground waters exceeding 500 mg/l chloride ion have moved inland across the Bolsa Fairview fault as depicted on Plate 1. 5. Nitrate concentrations in excess of 1 mg/l, and general odor problems are not associated with the invasion of saline ocean or bay waters. Nitrate concentrations exceeding 10 mg/l in the Semiperched zone have probably originated from the downward percolation of surface waters. i. 6. Considering the present maintenance of excellent mineral quality in 1 ground water at well 20K8, progressive degradation at the Campbell well (20K3) is concluded to be the result of downward percolation of waters from the overlying Semiperched aquifer. This migration of ground water high in chloride and nitrate has probably occurred either at an improperly abandoned oil or water well, or along the casing of the Campbell well itself. Absolute assurance of this interpretation is W.". precluded, however, because of an absence of monitoring wells seaward of the problem area. ({r tk. ' 1� 7. Taste and odor problems noted at the Campbell well do not appear f to be associated with past liquid waste disposal practices at the Bolsa Chita or Boucher Dump, based. upon review of current ground water analyses. Ll 8. While the Campbell well impairment appears to be a local problem, 3 other nearby wells in the Alpha aquifer could be affected; these specific r problems would be identified and differentiated from direct sea water intrusion by marked increased in nitrate concentration. 9. If future ground water basin operations in the Orange County Coastal Plain are such that water levels at elevations below sea level are sustained in the Alpha and Beta aquifers, remaining shallow wells just inland from the Bolsa-Fairview fault will ultimately exhibit local ---JJJ increases in total mineral concentration from sea water intrusion and/or local taste and odor problems. r RECOMMENDATIONS Based upon the material described in this letter report, the following recommendations are made: 1. If local water supply conditions on Bolsa Chica Mesa require it, k shallow well supplies would be replaced by a few wells constructed in the Main aquifer (500 feet deep), an underlying zone which is not now subject to sea water intrusion. ;J 2. In consideration of the probability of increased ground water quality problems in the Bolsa Chica area in the future, a periodic well monitoring program should be initiated immediately. The wells shown in Appendix A should be sampled at least once each six months. - 10- 3. Because of the absence of sampling points along portions of the potential intrusion front, additional piezometer nets should be constructed to tap the Semiperched, Alpha and Beta aquifers. A test A site for the initial piezometer net should be located just inland from the Bolsa-Fairview fault about midway between wells 20K3 (Campbell) and 20M2 (BSO-6). . 4. With the present rapid changes in land use and resultant destruction of shallow wells, it would be desirable to save and maintain if possible, a number of wells with long periods of record for continued monitoring of ground water quality. Selected wells for this purpose are shown in , .;. Appendix A. . 4s 5. Improper abandonment and destruction of shallow water wells in the `J Bolsa Chica area can pose hazards to fresh water bearing zones by allowing degraded overlying Semiperched waters to move directly 4. downward to lower fresh water zones. To minimize this potential for impairment, local agencies should be encouraged to specify and enforce complete inter-zonal sealing of shallow wells before they are improperly abandoned or otherwise destroyed. Li P1, ; S;�t �l. i z -11- ..�.,.,w. ..� .�:� ..;:. :.� . ..�■urrrar�rrr�rrl�•o�iiur,�a� - OF 6* � •• ` ,`... 3 t� <:•'' � `OFFICIAL. PUB TION ` gNAH�IM 'CHAMBER'^ F 'COMMERCE' ; - - pc 5• . �tb.,,. VOLUME 11,NUMBER 6 $EPtTEMBER 76 Chamber Corputeriged Center Ope' nsa;-1;e,. st { i �YR A ' � d ott eo ai®hf Jonn 1lockrn`Rirttdana x1Y/C3itgdd Pros1#".1 of Jha 44JWF►Chambat olComatayrcs.rM;i Wan•Ick,Der hi What �>_"'- "--•�' ,a •p LurrY:SUrk,'Exaprtfwal/ia P�a�slO�itSd€ the Anaheim Chamber of Commerce; M to�:'INBI1a►,�Bank'ot; . °' .America,.Vice t?residint/Ma`neper, Anahaliri;'Main Q�tics'and VFee President of titre Anaheim Chamber of Comp-Jna�i .,, Ward Anaheim Copy Center and Chairman of t1M'E.cotwmip� '"4 IP(C55:U1Lii`St� " �'i�t W,�h� �d � t �•. t)evelopment Coriimlttae for tho;":Anahela�i LChambw"q!^' � ��: �f��,��re try t Commerce:.. �fti7 j Pu Q After five months of plan ning and considerable effort o¢ .ch w "`� i the W part of Jack ard(AnnWin Copy Center);Dark b Fa(Cortt;+from i � ;� �^sine r'andaaolutiona to (Northrup Corp;,`ElectromechanfcalIhv) .and.',, touteide,'of,thear tiro-. (Anaheim Chamber of Commerce) ,:the Chamber' e¢ 3 { , da nil)fields,The mputersn Directors voted on August 19 to establish a pilot coa►puf �dj k informatiori" center within the •Chamber,'s� officed:"zrllae ' qa 4be ased?ftowoompare Anaheim Chamber of Commerce will be the first intire"ne{Lioa problemsfandsolutaons'with to make tibia unique resource available to ate membership and r outregard z the surrounding business and governaneatal eommunxty sk andushy Thaw' �alatchea i The heart of tire,informs- er rev_resent aagn$cantrbusmess.. business managers and ego• ;�, i don center is computerized vernmental -,personnelRm .� collection of 25 million do 4- using, the .latest 'and moat` "� Sdentasta.Doc-' meats representing,a major effective' techniques n oLh pro byaouele can benemapy cross"section of the morid's "their operations A?� m 1'< published.information. •A formation would include the gr from Chas ser" It:can be` new) installed computer ter mtvaluable in maintaining . Y p Latest techniques and;mate technical competence end m minal is,used to;scan,these risk":for painting white Imes }+� documents to find.very sped- on`ekeets°and newt acts';r s19ohrmg epectfic probleis"as; fic items, pertinent to a Pry they gccnr ,Retailers; can pe such as a machine fort bagging 7ezpect{t_find the latest tech ' particular individual a needs. oranges, orF e.license to maA, Iacludetl an this compn mafacttare'gr8phite`oliafta'for nigaies m smerchandaeang and:.' ter,zed collection. of docu- goR �•;' bohatioas to problems such as, meats are 16 000. monthly Uahke�tradtaonal informs`Y � °r b t check pass- trade publications,. the "full tion centers which*rdispanse �� h published output of 270 Fede- free information andFthua are°}ti�"' a frill desrnp- ; Hj ral agencies 80:newspapers limbed in resources padicap-��4aon of�the r� requue f the National Libraries ,.of # ab0ities, the.,Chaae6 s m.` Co. ess,'Medacane; re cats%Th beat thing to do foraiagon center is•offerYng a; ture, and nungerous.private feasaonal aer` r amatavother��Ghamber for a; information collections. Newt �4 ty'Pm F �' eQecafiv descriptiam of those. vacs at moderate coil+�vhaeh_; {< a' vvafch should bet' documents are be*added at ,.;draatscaQy"help"{,bot$� usefut{for your parWvular ac ' the"rate'of 2 000 documents business and gov each.honr. Access to tamely and sex `" taiyitaea. wc '. The Federal "imatfon information s t4e { If you are .rbady tfor the collection. of 900'000 docu noon revolntmn you of any successful e�ndea meats.is eztremei mteres y < to take advantage of 9 and:with 2 million wntem�; because at contains-the ` sae;rvace now, Either be .; 8 the world,todaY.t+►ae�ra n the CHambeir ivath a'• research"results:,of:more,than almost any queat5agyrouc � t�orb atbendang one 260 billion dollars invested:by think of have been" t+ , f q m a s the vernmenL in.the 12 ` t rregul$r,ptesentetaons 8o Pam. 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E 11 J 1 spy T +'[Lu,. 7 a�" r +"• �* � +x r ,v�T 1 cbn 4 ar���t MTntazne` c tywand County Heaith< x r"'vdt z a aa. a.T, r•'kk rc c a.t 'Fgrr ° x t'� >'c n i .,� a a - 'te ctvat tii tt,ofit '� a eawsttu for a{frmaly .a.t rr.,� r a v'N s,� S >�'� -i .•� r s`., r s c ><4 ' _.,�a-c � �� .� tek and � j + ed. rstR rpon tle samples to decid@what 5 a f ¢ of t e Jr &,3 x'd ,�. 4 e r k g,yr'rj (ouh a e th D tie `ta tti o Herr 1 -+` �, T' & "f ik»s 4+r�A "4 `f 1 XPS t ��rSk»i, r rs7 f•Y 'u.' .+ ru {i"rm "1: Ss 6 ayh w S fi 11. - �ltp Cpu►C�lnon�. Skeirrpri�$g'�cn� s�y��ee ,4r?j'fbr,the,deveioper, Zambor. said .*• x z4 S, 4,cxiCs�a { ..L me rA.,r,wt 'ra::t h t� vre�+de€fay tint tfie�fu $sflst� � $ been ying'to do everything he can to help ,Ffgi a x ! ' vcvyP w �^ s a i aa,a s •s (z dgect$�3�; K " tfils situation,but right now he's stuck" t yA fant�Ma tit ut �xr I �nee rel+e 9 eartmw tlfaireyuipent Wass �c�it'a 1t�1 " +a v rex ra tz tat ,� dee i4tt�ie.sutWWI4�livlsibnfilieeuip ya a 1 a e � emtied��rr�riput�g€ dortmoslof te ° de b as smelting ve an extra"strdr dcise of agar,11ganaphim. 15 s' te ✓ ;.. �,pu'M'� 3•�i`r�,i.5 v.'ytsPm - 15,.�jr�� 5 '+ .° % ,a°+tr: i41"t fi s mNE'd.R {td�Y':. �;.♦�r z t ti ?"mds % 'I Ali S , i°. f37n ,..v 'ac �s � F .k A PL � p,.{S IG a 1 )i .1 Sk $ `F No, 'tt�i .G} �h _ .,{ .h" � §�� i� ,46Fr > 3�S 3 �w , ar .ff l i�f x fy 5. .x �M l r v f yr n3� I q 4k `« n `4<t i Pfo-s F7�iJ r+rt 4r'i'. � k � i � `� ` � � r��`"S" � tit L, ��'A' �Y ��' 5#mlif .. I,~,?�'�.�' t5 n �A�ir�ff �',Yk�a�y7� ��� ✓ r r �!=y `�k �`sib. "A' M14'!:��Y�i',�M�� ,`'Hx ' , GT'OMBEASG'H=�=`City 4ffa ts�w"'r •"�{ s ' tt �}brt�(�j Wednesday}wht �he noxx ups�u �� s�,epi� fi�oni ant83�G3v�ttQn��e anal f4 li� " , k 5��,�a 4sI�r rsS!�r 1 iF,Y�3�'�•.F F a��r"i� >�"-r, x.'.�;� # { dIt Hof-,mearby� eighborpood have�alrr� a� � rid ,t�'aii;;�be c��y�hSsF�orFudd`en�frthe� _ � � �, q 3 a,7� �FYW��"'% �MF�7��et�l��dY, . ax ,S e`fitG���� F4�S } j� Ti��Y+.T�P����� I •t. .11.�e: I r;, ' �. ¢� K���.-�.A. 1 �. • p�,�the fumesca mesurd, t ctlmrolLngm. m,cie,, kt�<' ,� +. kj`rr tbi c A F F 'i ^P R '�' x i. ��� �*rp� h vl,yt,I � � `�T Y x�1a�.,nig`�n�1 rt Ktr� • pnvatextestang bortor a d t EatS1F°S't ^"r ,"Y�'T .r p� + Y�'"\� r#t •. �#5'' ity sail snipes substadces regale , e , If F ' yAtie¢ ou' ., ds ,•s"ti r >n47��a� � t�rs�r�tia, �"4 �`t (�A�r'� icros The later Opera, is ryi;. f rlp #z s« :Z�S $�8 1 r� he y't�Pv v on �xfQY'�Y3F3 accodng�to the C ..,� es�eneuiter ,�iQ�� � .a{; r• � zt^` t a K4i��nY° � rr Thersubstanceslc�ric13ifIT ? �f�," eyhal?een ordered��ll w m sul#ydehethyl"imy�er ; 1 S 7T Y `k i Sfi Yh 1' E } $If�.,a 1 large Prlough co� eatxt�y�nd�urlGyHathRY q r .w+a tr, 'uS af` r' ,k:: t3`r3'* but Yecause Cher ,avat19PIRWAS #op eri f ; it�n for a"f rin`a last�week any i #necb � a . : a , srb u'� "sartpts t ��ecae`ivy�lat° rt^`!'. '*# Gounty�ieaWlth'Deartnaer � Y1 x .Ap x 4 1 `:i{ 6�1 .:avTi;•7• t7 "7k� Sa S r -•i - �ty Cpuncilnanbn, afsa sryfitdorp;,"nY✓"YN u 4' d xk � + :" � ;dryveyltl� lie��an�ta>help intery e ne r1��y tt"t d : r h"�� .rs d�F�l t a ' �'4 h, t, s r x t. k � a e, r �`" nX '��Sn.+�, .. detected pt 9aiie`�" tobabfy, r �' � ..,��ygtn�; ctriny'kessuck f�� pR4pt `s �n thee"� hbang housl �� 'i* �,r ,,4 q.:... •',zt ,. said m-4H a lei e p q" p 7 } F A F� and sep` head' ` id he famil "th ut the`hou `it Fr fumes co , be elim r a �' }, _. °v`t a' s t •t yr�i The=fumesapparentlywereFre Bad wlzn �. x' r� , earthmovmg equipmezlt,wasp-calvg�out a . . . de sacin the subdivistJ. ev on�The�equip�rnent'uricuv ered'aT iard.t tilaek rsan y�s'ubstMeml h, 1` j emrtteds a werf4l� inge"tY d`. most often described as smellingLke an extra strop y'do`se of garlic and"onigns, 'Uses O ® �O U NTY O.F SANTA ANA OFFICE z 645 NORTH ROSS STREET TELEPHONE: 834-3131 Moiling Address: P.O. Box 355 Santa Ana, Californio 92702 RANG E ANAHEIM OFFICE 1011 SOUTH EAST STREET TELEPHONE: 776-5551 Mailing Address: P.O. Box 355 HEALTH DEPARTMENT Santa Ano, Californio 92702 October 14, 1976 Floyd A. Belsito I City Administrator City of Huntington Beach City Hall P.O. Box 190 Huntington Beach, CA 92648 Subject: Odor Problem, Tract 9235 Dear Mr. Belsito: As you probably know, the Board of Supervisors has directed the Health Department to assist the City of Huntington Beach in regard to the odor problem at the construction site of Tract 9235. I understand that our representatives have held discussions with your staff and have made arrangements to monitor the excavation of a trench into the odor-causing oil-waste deposit sometime this week. I am informed that the excavating will be performed by the builder under carefully controlled specified conditions and, if at any time, an odor problem develops, the work will be halted and the excavation backfilled. We will be pleased to cooperate in this endeavor. We wish to point out that, at this time, we do not have sufficient factual information to ascertain whether a continuing or recurring odor nuisance, safety or health problem could exist after the dwellings are constructed over or near the odor-producing deposit. We believe it would be prudent for the City to make such a determination, with consideration being given to the effects of possible changes in subsurface conditions which might occur in the future. For example, what effect might the percolation of surface water into the deposit have on the generation and evolution of gas or vapor? If generated, could gas or vapor enter. underground sewer lines, . storm water drains or manholes which penetrate the deposit? Could such gas or vapor enter dwellings? If these eventualities are possible, what can be done to prevent their occurrence? Fred A. Belsito Page 2 Octover 14, 1976 We will provide whatever assistance we can in answering these questions. However, we believe this should be a joint effort involving all possible sources of expertise.. We have received an offer of help from the State Department of. Health, directed by the Governor's office in response to a request from the Mayor of your City. We have accepted and will work closely with the State. Also, knowledgeable personnel from the City and the County Environmental Management Agency should be consulted. Please let me know your reaction to this suggestion. We will be pleased to work with you in whatever manner you wish. Very truly yours, Robert S. Stone, R.S. , Director Division of Environmental Health RSS/lc cc: Ray Edwards, E.M.A. Earl Margitan, State Department of Health Ed Camarena, S.C.A.P.C.D. J. R. Elpers, M.D. , Health Officer Laurence J. Schmit, Supervisor, District No. 2 CITY OF HUNTINGTON BEACH INTER-DEPARTMENT COMMUNICATION HUNTINGTON BEACH To Don Bonfa From. Mike . Zambory Subject City Liability. on Frank Date October 15, 1976 Bucella' s Development,. Warner at Bolsa Chica Since there exists a possibility of the odor problem re-occurring in the future on this site, .it is requested that .the City:' s exposure to liability be researched. The. developer plans on including disclaimer clauses in their sales documents in an attempt. .to eliminate their future liability. - Since the City is aware of the problem - and no long range solution has been proposed, could the City be held responsible in the future? Michael Zambory Acting Director of Public Works MZ:WEH:mc . �r OFFICE MEMORANDUM To Walt Hurtienne, Acting Director Date October 1, 1976 of Public Works From Don P. Bonfa, City Attorney In Re Agreement re Odor at Construction Site - South of Warner near Leslie Please advise me immediately if you have any disagreement with Frank Buccella. You are in charge of administering the agreement . q .F s-, K5 DON P . BONFA City Attorney DPB :b c C,0-f Attachment OFFICE OF """ CITY ATTORNEY P. O. BOX 190 HUNTINGTON BEACH CALIFORNIA 92648 DON P. BONFA TELEPHONE CITY ATTORNEY (714)536-5555 September 30, 1976 William L. Anderson, Esquire 888 North Main Street Santa Ana, California Re : Agreement concerning odor at construction site south of Warner Avenue near Leslie Dear Bill : This will confirm the agreement entered into by ,your clients , Harbor Bluffs Development , Frank Buccella and Ivy Ong, and yourself and the City of Huntington Beach in my conference room this morning, that there shall be no construction activity at the above captioned construction site which will either create an odor -or disturb materials which emanate an odor without prior consent of the City of Hunting- ton Beach and , in the event of a disagreement between .the parties, you shall give the City Attorney three days notice before any such activity is done . If this letter does not correctly reflect the agreement , please notify me immediately . Cordially, DON P . BONFA City Attorney DPB: cs cc : Harriett Wieder, Mavor Richard Harlow, Acting City Administrator Walt Hurtienne , Acting Director of Public Works Council Members 1 . r Earth Research Associates Inc. July 28, 1976 J. N. . 200-75 BUCCELLA ENGINEERING BUILDERS 1866 Rhodes Drive Costa Mesa, California 92626 Attention: Mr. Frank Buccella j Subject: Seismicity and Fault I.nvestigation, Tentative Tract No. 9235, City of Huntington Beach, California. Reference: 1 ) Preliminary Foundation Soils Investigation, Proposed Apartment Complex, Leslie Drive, South of Warner Avenue, Huntington Beach, California, by H. V. Lawmaster & Company, dated August 3, 1971 . 2) Seismicity Report for Approximately 6 Acre Parcel Located Southeast of the Intersection of Warner Avenue and Leslie Drive, City of Huntington Beach, California, by Earth Research Associates, Inc. , dated January 2, 1976,_J.N. 200-75). Gentlemen: Submitted herewith are the results of a seismicity and fault investigation conducted within the subject property. Included within this investigation r was the excavation of 220 lineal feet of trench for the purpose of determining the presence or absence of surface faulting related to the Newport - Inglewood Fault Zone, the nearest trace of which has been projected in the subsurface approximately 700 feet Southwest of the subject tract. i FQr the purpose of completeness, we have also included within this report a previously reported analysis of the seismicity of the site prepared b this P Y P Y Y P P Y jsi firm (Reference No. 2) . 3001 Red Hill Ave. The Esplanade IV• Suite 120 • Costa Mesa, Ca. 92626 (714)549.8921 •�I Buccella Engineering Builders July 28, 1976 J. N. 200-75 Page Two We have also reviewed the above referenced foundation report (Reference No. 1 ) for the site. LOCATION AND PRESENT SITE CONDITIONS The subject property is an irregularly .shaped 6 acre parcel located East of . Leslie Drive and South .of Warner Avenue. Total relief within the site is ;:- approximately 25 feet. Presently, the site is being utilized for horse stables with numerous corrals and pens. We understand it is proposed to construct one and two-story apartment buildings within the property utilizing standard wood frame construction techniques. FIELD INVESTIGATION .:` An exploratory trench totalling 220 lineal feet was excavated in a Northeast direction from the Southwest corner of the lot in order to determine the presence or absence of faulting. This test pit was excavated with a backhoe to depths of from 9.5 to 12.0 feet .and was carefully examined throughout its entire length by a geologist from Earth Research Associates, Inc. and by x Mr. Jim Evans, geologist for the County of Orange. - --A graphic log of the trench was prepared in the field and is included herein as Plate B (.in pocket). In addition, descriptive logs of earth materials encountered in the trench was prepared at 25 foot intervals and are presented in-Table IV. Approximate location of the test pit is shown on the enclosed s plot plan (Plate A). Earth Research Associates Inc. Buccella Engineering Builders July 28, 1976 J. N. 200-75 Page Three EARTH MATERIALS Artificial Fill Previously placed artificial fill was encountered throughout the trench. At the Southwest end of the trench 9.5 feet of fill consisting of organic and chemically stained sandy silts was exposed. In the remainder of the trench loose fill with varying amounts of debris was noted in the upper 0.5 to 2.0 feet. n Alluvium Beneath the thin layer of fill materials in the Northeast portion of the _q trench, 0.5 to 4.0 feet of alluvial materials consisting of silty sands and sands showing crude to well developed laminations were encountered. Terrace Deposits Pleistocene terrace deposits underlie the-entire site to the maximum depths explored and are composed of light brown sandy silt materials to depths of x 6.5 to 9.0 feet and medium brown to black lean clay materials below a distinct _ contact between the two materials which was traceable throughout the trench. except in the area of the fill in the Southwest portion of the trench. A distinct petroleum residue and petroliferous odor in the lean clay materials was noted in the Northeast portion of the trench. ZME REGIONAL GEOLOGY The subject property is located within the Bolsa Chica Highlands Region of Huntington Beach which is underlain in the near surface by Pleistocene terrace t ' Earth Research Associates Inc. y . BuccelIa Engineering Builders July 28, 1976 4 J. N. 200-75 Page Four deposits. Dominating the regional geology in the vicinity of the property is the Newport = Inglewood Fault Zone which has been projected beneath the site on the basis of subsurface information obtained from oil wells. This fault zone and its potential effect on the proposed development is discussed in detail in the following "Seismicity" section of this report. SEISMICITY -There are a number of documented faults in Southern California which are con- sidered active and which would have an effect on the subject property should they become reactivated during the life of the development. Plate No. 1 shows the location of the property with respect to the major active faults in Southern California. Plate No. 2 shows the location of the site with respect to the nearest active trace of the Newport - Inglewood Fault Zone as plotted by the Planning Department of the City of Huntington Beach. This location, which is dotted owing to its concealed nature in this area, has been derived from information supplied to the City by the -California State Division of Mines and Geology in their mapping of the fault zone in compliance with the Alquist - Priolo Geologic Hazard Zones Act of 1972. As can be seen in Plate No. 2, the subject property is located in the immediate vicinity of the zone of projection of the subsurface trace of the Northern (Bolsa - Fairview) Fault Branch of the Newport - Inglewood Fault. Since the location of this fault branch is based on subsurface data and surface r rupture has apparently not occurred within the past 9,000 years on the Newport. - F ,i Earth Research Associates Inc. . . Buccella Engineering Builders July 28, 1976 J. N. 200-75 Page Five • Inglewood Fault in the Huntington Beach area, (H. B. Seismic Safety Element) , �y { this fault location must be considered approximate. Ground Rupture In order -to determine the presence or absence of the fault zone within the site, the backhoe trench described in the "Field Exploration" section of this r report was excavated .in the Southwest corner of the property. Careful examina- tion of this trench by a geologist from Earth Research Associates, Inc. and by Mr. Jim Evans, geologist for the County of Orange, revealed no evidence for near surface faulting within the Pleistocene terrace deposits. Except in the area of fill at the Southwest end of the trench, it was possible to trace an unbroken contact between the near surface sandy silts and the underlying lean clays. The absence of evidence for near surface faulting within these trenches exca- vated in Pleistocene terrace deposits indicates that ground rupture within the site has not occurred in the geologic recent (Holocene) past. This , combined Jq Yl:: with the conclusion of the Huntington Beach Seismic Safety Element that ground rupture has apparently not occurred in the Huntington Beach area within the past 9,000 years, makes it highly unlikely that surface rupture would occur within the site during the life of the development. Ground Shaking Table I lists the faults which might affect the site, their distance from the . site, and estimated ground motion parameters including maximum probable Earth .Research Associates Inc. :l Buccel l a Engineering Builders July 28, 1976 - J. N. 200-75 s Page Six F�. earthquake magnitudes , probable effective bedrock accelerations , and durations of strong shaking at the site. z TABLE I Probable Maximum Approximate Effective Duration Probable Distance Bedrock of Strong 1' Magnitude From Site Acceleration (g) Shaking Fault Earthquake* (Miles) at Site (RHGA)** (Seconds)*** Newport- Inglewood 6.6 0.50 0.48 20 Whittier •6.8 20 0.14 21 Elsinore 7.2 24 0.13 26 ' San Jacinto 7.5 50 0. 10 26 San Andreas 8.0 52 0.14 28 ! * Albee & Smith (1966) and Housner (1970) '� ** Schnabel & Seed (1973) and Slossen & Ploessel (1974) ; RHGA = Repeatable High Ground Acceleration *** Bolt (1973) Between 1918 and 1975 there have been 7 earthquakes within a radius of 70 miles of the site having magnitudes greater than 5.5. These earthquakes are listed in Table II with their respective distances from the site and probable maximum effective bedrock accelerations at the site. i. TABLE II - Maximum Probable Approximate Effective Bedrock Distance Acceleration (g) Date* Location Magnitude From Site (Mi . ) at Site** 4/21/18 Hemet 6.8 60 0.04 7/23/23 Box Springs Mountains 6. 3 50 0.04 3/11/33 Long Beach 6.3 8 0.22 5/31/38 Trabuco Canyon 5.5 29 0.04 11/14/41 Wilmington 5.5 14 0. 10 11/26/51 San Clemente Island 5.9 65 .0.02 ti 2/9/71 San Fernando 6.5 51 0.04 Earth Research Associates Inc. ,J. Buccella Engineering Builders July 28, 1976 ` J. N. 200-75 -- Page Seven * Bulletin No. 11602, State of California, Department of Water Resources, (January, 1964) a , ** Schnabel & Seed (1973) and Slossen & Ploessel (1974) 7 t: Housner (1970) has computed the statistical probabilities of any site in California experiencing various levels of acceleration within prescribed periods. Assuming a 50 year design life for structures within the develop- ment, the following probabilities for acceleration could be anticipated: TABLE III Acceleration Probability of 1 Occurrence For Firm Ground per 50 Year Period C 0.05 - 0.09 99 0.10 - 0. 14 88 0. 15 - 0. 19 64 0.20 - 0.24 40 0.25 - 0.29 22 0.30 - 0.34 10 0.35 + 4.4 x. v •`; Considering the data ..in Tables I, II , and III , it is reasonable to assume ,r that during a 50 year life, structures will probably be subjected to a ground acceleration of between 0.15 to 0.19g. CONCLUSIONS AND RECOMMENDATIONS ;3 General From an engineering geologic and seismologic standpoint, the subject property is suited to the proposed development provided the following conclusions and Earth Research Associates Inc. { Y . Bucella Engineering Builders July 28, 1976 J. N. 200-76 :t Page Eight recommendations are incorporated into the design criteria and project specifications. s Seismicity . 1. Near surface faulting was not ecountered within the exploratory trench; consequently, building restrictions or restricted use zones are not necessary within the property. 2. -Based on our analysis of the seismicity of the site, it is probable that during a 50 year life, structures within the property will be subjected to a ground acceleration of between 0.15 and 0.19 g. 3. Owing to the generally cohesive and firm nature of the near surface soils and to the absence of high groundwater conditions , secondary ground effects such as lurching and shallow ground rupture, liquefaction, or settlement . would not be anticipated as a result of ground shaking within the site due 1.: to an earthquake. M 4. Owing to the flat terrain, earthquake induced landslides are not considered a' possible. 5. For the purposes of design, it is recommended that all structures within R r- J:. : the property be designed in accordance with -the recently revised Earthquake Regulations of the Uniform Building Code, 1976 Edition. Respectfully submitted, en.ri- EARTH RESEARCH ASSOCIATES, INC. A11Qn Be6CEG 936 Engineering Geologist AB/id Earth Research Associates InC.Dis-: (6) Addressee N S; 1; A VE.-� r I E SL/E OR. i i .. j 1 e f 1� I. zi �eseorch ASsociafes f,7c ✓w Zoo-75 7& PL,4TE A J. N. 200-75 TABLE IV LOG OF TEST PIT TRENCH STATION Depth Number (ft. ) Description . i. 0 + 25 0.0 - 9.5 FILL: Jumbled mass or organic sandy silt, dark brown; }' moist and loose; intermixed With sulphur and purple stained sandy silt; moist and dense to medium dense; numerous roots to 2.0 feet 9.5 - 12.0 Clayey sand, brown; fine grained; moist and dense; (SC) Terrace Deposits ' { 0 + 50 0.0 - 2.0 FILL: Organic sandy silt, dark brown; moist and soft 2.0 - 6. 5 Sandy silt, yellow; very fine grained; sulphur odor; grades to a lean clay at the base; (ML) Sulphur stained Terrace Deposits 6.5 - 11 .0 Lean clay, brown; moist and stiff . ; 0 + 75 0.0 - 1 .0 FILL: Sandy silt, light brown; very fine grained; dry and loose; PAIL s 1 .0 - 1 .5 Silty sand, light brown to white; fine to very coarse grained; dry and loose to .medium dense; (SM) Alluvium ° 1 .5 - 6.5 Sandy silt, light brown; very fine grained; damp to moist and dense; thinly laminated with small scale cross bedding; (ML) Terrace Deposits q 6.5 - 10.5 Lean clay, brown; moist and stiff; (CL) 'Terrace Deposits . 1 + 00 0.0 - 0.5 FILL: Sandy silt, very fine grained; dry and loose 0. 5 - 2.5 Sand, gravelly, light brown to white; fine to very coarse 9� grained with 20-30% gravel ; crudely laminated; damp and !l loose to medium dense; (SW) Allvuium 2.5 - 7.5 Sandy silt, light brwon; very fine grained; damp to moist and dense; thinly laminated with small scale cross bedding; (ML) Terrace Deposits n 7.5 - 11 .0 Lean clay, brown; moist and stiff; (CL) Terrace Deposits t, - 2 - J. N. 200-75 STATION Depth - Number ft. Description 1 + 25 0.0 - 2.0 FILL: Sandy silt, brown; wite considerable trash; dry to- damp and loose 2.0 - 3.5 Sand, light brown .to white; crudely laminated; damp and loose to medium dense; (SW) Alluvium 3.5 - 8.0 Sandy silt, light brown; very fine. grained; damp to moist and dense; thinly laminated with small scale cross bedding; ; t (ML) Terrace Deposits 8.0 - 11 .0 Lean clay, brown; moist and stiff; (CL) Terrace Deposits 1 + 50 0.0 - 1 .0 FILL: Sandy silt, very fine grained; dry and loose; (ML) 1 .0 - 4.0 Sand, light brown to white; fine to very coarse grained; gravel layer at base; well laminated with scour cross a bedding; dry to damp and loose to medium dense; (SW) Alluvium F 4.0 - 8.5 Sandy silt, light brown; very fine grained; damp to moist and dense; (ML) Terrace Deposits 8. 5 - 11 .0 Sandy silt to lean clay; gray to black; strong petroliferous odor; moist and dense; (ML/CL) Terrace Deposits 1 + 75 0.0 - 0.5 FILL: Sandy silt, very fine grained; dry and loose; (ML) 0.5 - 4.5 Sand, light brown to white; fine to very coarse grained; gravel layer at base; well laiminated with scour cross bedding; dry to damp and loose to medium dense; (SW) Alluvium 4.5 - 9.0 Sandy silt, light brown; very fine grained; damp to moist and dense; (ML) Terrace Deposits r 9.0 -10.0 Sandy silt to lean clay, gray to black; strong petroliferous odor; moist and dense; (ML/CL) Terrace Deposits 2 + 00 0.0 - 1 .0 FILL: Sandy silt, very fine grained; dry and loose; (ML) 1 .0 - 4.5 Sand, light brown to white; fine to very coarse grained; gravel layer at base; well laminated with scour cross bedding; dry to damp and loose to medium dense; (SW)Alluvium 4.5 - 9.0 Sandy silt, light brown; very fine grained; damp to moist and dense; (ML) Terrace Deposits 9.0 - 9.5 Sandy silt to lean clay, gray to black; strong petroliferous ' odor; moist and dense; (ML/CL) Terrace Deposits TOTAL LENGTH - 220 Feet OtOo o t 25 Of?o 0175 I11 f 5 - Si/fy Sod. - �� Existing Ground $urt'oce? p " fill- orgonic Sondy silt \ Sondy_5i/t --- -- Teri Terroce Oeposifs" 5017dy 5.'/1 fo [eon G/ay .� Tre✓10h F140dr • - /s fXP10RllTORY T A(MMEA57- NOTE 5� Test P/ Log {„^ AOi/ 7 7t20 l I I I I */D — --- --fib/- soody sill W,/" OCCO601701 61-9017ic Oeb�i�---------'------��_ --_— ---_-- 0 —_ inr to very coarse Sind Terroce .pepo•:its. - SOndy, Silt —i----- --- °—'— ------ --` 7y r`- Petroleuln Stoins Odor EXPL j2xg roRY Tf 5T P/T NO.PTHEAST� _ _. K See Tesf A/ [oq /nr aefoi/ea' Descrip:'w of Moterio/s Eorfh ,Pese•Yrch Associates, Inc. ✓n/ ?oo-7s ✓-/y 74,