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HomeMy WebLinkAboutO-1999-2355 . e ORDINANCE NO. 99-~3S.,5 AN ORDINANCE APPROVING AND AUTHORIZING AN AGREEMENT BETWEEN THE CITY OF LA PORTE AND PBS&J ENVIRONMENTAL TOXICOLOGY LAB, TO PROVIDE PROFESSIONAL SERVICES FOR ESTABLISHING A TOXICITY REDUCTION EVALUATION (TRE); APPROPRIATING $33,425.00, TO FUND SAID CONTRACT; MAKING VARIOUS FINDINGS AND PROVISIONS RELATING TO THE SUBJECT; FINDING COMPLIANCE WITH THE OPEN MEETINGS LAW; PROVIDING AN EFFECTIVE DATE HEREOF. BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF LA PORTE: Section 1. The City Council hereby approves and authorizes the contract, agreement, or other undertaking described in the title of this ordinance, in substantially the form as shown in the document which is attached hereto and incorporated herein by this reference. The City Manager is hereby authorized to execute such document and all related documents on behalf of the City of La Porte. The City Secretary is hereby authorized to attest to all such signatures and to affix the seal of the City to all such documents. City Council appropriates the sum not to exceed $33,425.00 from the utility Fund Wastewater Treatment operating Budget to fund said contract. Section 2. The City Council officially finds, determines, recites, and declares that a sufficient written notice of the date, hour, place and subject of this meeting of the City Council was posted at a place convenient to the public at the City Hall of the City for the time required by law preceding this meeting, as required by the Open Meetings Law, Chapter 551, Texas Government Code; and that this meeting has been open to the public as required by law at all times during which this ordinance and the subject matter thereof has been discussed, considered and formally acted upon. The City Council further ratifies, approves and confirms such written notice and the contents and posting thereof. . e ORDINANCE NO. 99-~~~~ PAGE 2 section 3. This Ordinance shall be effective from and after its passage and approval, and it is so ordered. PASSED AND APPROVED, this 23rd day of August, 1999. CITY OF LA PORTE By: L~~- Mayor ATTEST: 1J1attAa- (). .;1Aituf Ma ha A. Gillett, City Secretary APP~OVED : ~-zd, Knox W. Askins, City Attorney . e T.ne Vi~cu.g Discharge Pe:mit issued to the City of La. Pone's WasteWaIer Treatmem Plam by the Te:as Samra! R.esomces Conservation Comm;caon (Th"'Rcq tequllQ Bio- ~~ Samples be tested and results repol.tr::d for effluem toxicity on or before July :om and J~ 20m of each year. This teSt ripfP!"n'lm~ the toxicity of a plant's effiu.e:tt ,'ms< hA' ~~) by ~ teSt ~cmc to the effiDem fur a period of seven days. The mx:iciIy !eve! is d.-!~ 1I1;"~ by the I11III1her of ~cmc dying over the period of the teSt as ~ared to the ~cmc in a comrol sample. In May 1999. the Chronic Toxicity Bio-Mcnimring!eSt was nm on the piar.t emllClL T.oe !eSt failed on the sixIh day of the ~ Tne pe::miI :equires ~..est for two conse-=:nive momhs. In JUDe 1999 the first rerest was nm and passed. In July 1999 me s~ond ret-ASt was run.. It f.riled on the third day of the teSt. ~"'RCC regulations and the Plam's pe::mit require the City to perform a Toxicity Reduction Evaluation (TRE) upon the inability to get two consecutive passing samples. Wnhin 45 days of the last day of me fa1im~ l'e"'..est. the facility must submit a General Outline for inirimin~ a TRE to the Commission. W tthin 90 days of the last day of the failing retest. the :Eacility must submit a TRE Action Plan and Schedule for conducting a TRE. Tne pian is a step-~ise investig~on combining toxicity testing with physical and chemical analysis to determine actions needed to elimmm-", or reduce effiuem toxicity to a point where the oreani<m1~ are not affected. Within 30 days of submitting the TRE Action Plan. the facility must implement the TRE. The effiuent must be tested monthly for toxicity and, if fOlmcL steps must be taken to identify the to~ locate the source, and ensure the toxin will no longer be introduced into the system. This may be from industrial and/or commercial establishments discharging into the sanitary sewer system or could be from internal plant problems. The toxin may have been the result of an illegal "dump" or a one-time occurrence. Regardless, the sampling must continue for an entire 12-month period. Twelve (12) consecutive months of passing Chronic Toxicity Bio-Monitoring Samples can be used as a basis for the facility to petition the TNRCC for cessation of the TRE. Otherwise the facility has a 28-month period in which to locate and remedy the toxic release. The City of La Porte identified two Houston-area laboratories that specialize in Toxicity Reduction Evaluations. Both firms were invited to submit proposals outlining a proposed scope of work to satisfy TNRCC requirements, methodology. and experience. Public Works staff interviewed both firms, and recommends the firm ofPBS&J Environmental Toxicology Lab as the most qualified. PBS&J has a long history ofTRE services, with particular experience with municipal wastewater treatment plants. They currently hold the contract to perform TRE services for the City ofHollSton on an as-needed basis. The other firm. Stillmeadow, Inc., has extensive experience performing TRE services for industrial plants, but no municipal experience. e e Although both fi:Ims are qm" Hned to pwioun TRE services.. the unique ~..eristics of mmri.c:iDai wasr.ewa:rer TT1~~_ it more ciiffico.lt to isolate and iri~fv toxic iniluences. The - . wide ,,.ariety oi disduI'rges imo mmricipal systems prese:n a unique challenge to a fum ~!O iri~ specific c:mses for toxic evems. Tlle firm oiPBS&J is well qualified to ~uu !his service for IIIIlIIicipal ctlStOlIlf:IS. PSS&J has sniJ.I,; n ~.d a proposal to ~OJ..Lll TRE se:vices as folloVw"S. - . ... 1. as.K _ S 500.00 :'000.00 10':00.00 8..525.00 7.iOO.00 4..500.00 S33,~25.00 Task 3 P:epare TRE 0u:rI.m~ IRE Action Plan and 5c~e Mombly Bio muWJ:u.u.ug Task 4 Phase I Ch.ara.c-'..r::I ; , ",I ;00 Task 5 COn l.1I llmion ofToxicam lri~ficarion Task 6 R--porting and Consultin~ Total EsrimMM Cost Task : Tasks 1,2 & 3 are required services. Task 4 and 5 will be implemented only if a bio monitoring teSt flriIs. Task 6 will be used. as needed. throughom the Project. The esrimaIed bllri~et ofS33.4""'.00 will not be exceeded withom written approval from the City of La Pone. The scope oiwork and proposed cost is based on prior e.'"q)enence oithe firm ofPBS&J. CostS could eventually exceed this am01mt due to multiple toxicity eventS. or the inability to identify the toxic cause. Conversely. the monthly bio monitoring could result in no toxic eventS. Should this occur over the twelve-month period. the costs would be limited to Tasks 1.2 & 3. e ~IAnalytiCal T~ ServIces ~ e .:-....---..... Environmental Toxicology Chemical Testing . .... '....., -. - Field Services : 4 August 1999 , ; '''' :-~c O "'" .f"""II"""" ~ j=~= IVIr.Stephen L Gillett Director of Public Works City of La Porte ?O. Box 1115 La Porte. IX Ti572- i 115 PSS&J Proposal No. 99991 City of La Porte Wastewater Treatment Plant 001 TNRCC Permit No. 1 0206-001 NPDES Permit No. TX0022799 RE: Cost Proposal for Effluent Toxicity Reduction Evaluation (TRE) Services Dear Sir: PBS&J Environmental Toxicology Lab (PBS&J) is pleased to provide this cost proposal addressing a TRE for the City of La Porte wastewater treatment plant 0f'/'NTP) effluent This proposal is developed in accordance with the City permits and is fully responsive to your requirements. For your review, an effluent chronic biomonitoring test in May 1999 exhibited significant toxicity to Mysidopsis bahia at the effluent Critical Dilution of 95%. A second retest in July 1999 has exhibited significant chronic toxicity. The results of these biomonitoring failures as required by Section 4.a., page 27 must be submitted within 20 days of completed test failure; the next requirement by the TNRCC is to submit, within 45 days a general outline for initiating the TRE (see section 5.a.,pg 27) and within 90 days, submit a TRE Action Plan (see: Section 5.b.,pg 27, TNRCC Permit). The TRE is initiated on the "test completion date of the failed retest" . The TNRCC permits require at least quarterly biomonitoring with the effected test species (M. Bahia) during the TRE study period, The state permit has an "escape clause" (pg 29, section 5.e) for cessation oftoxicity, if no cause of toxicity is found. After a 12 consecutive monthly tests have been reported without toxicity, the City may notify the state of its intent to cease the TRE study and resume a normal biomonitoring schedule. The following Scope of Work provides a step-wise approach fur the TRE process: Scope of Work Task 1 - TRE Outline PBS&J will prepare a document to be submitted to the TNRCC containing general outline items to initiate the TRE for the City of La Porte WWTP. The EPA does not require this item. The outline will identify the project team from the City and PBS&J, summarize the test data that initiates the TRE and any other data or facts available conceming the toxic events. Task 1 COST: (3 hrs Sr, Scientist + 2 hrs Clerical) not more than: $500.00 ETOX Laboratory 888 W. Sam Houston Pkwy. S.. Suite 110. Houston. Texas 77042-1917. Telephone: 713.977.1500 · Fax: 713.977.9233 . www.pbsj.com e e PBS&J ENVIRONMENTAL TOXJCOLOGY LABORATORY Mr Stephen L GiIIett City of La Porte 4 August 1999 - Page 2 task 2 - TRE Action Plan and Schedule PSS&J will prepare a comprehensive TRE Action Plan and schedule to be submitted to the TNRCC and copies to the Region 6 EPA officers. The Action Plan will provide a description of the technical approach and methodologies as required forthe examination and characterization ofa causative toxicant(s}. a sampling plan for toxicity tests and chemical analyses. a quality assurance plan and project staff organizatic:1. Task 2 COST: (16 hrs Sr. Scientist + 4 hrs Clerical); not more than: S 2,000.00 Task 3 - Monthlv Biomonitorina PBS&J can provide quality biomonitoring during the TRE. Because the state pennit has an "escape clause" requiring at least 12 monthly tests using the effected species, M. bahia (paragragh 5.e, pg 29), this task will be costed at our nonnal biomonitoring rate. This cost includes sample pick-up, testing and report production. Sampler rental services are available at $75 per use day (a chronic test uses 3 samples). Task 3 COST: (12 X $850Itest) $10,200.00 Additional cost for SAMPLER rental (if requested) @ $75/day (3XS75= $225 per monthly test) Task 4 - Phase 1 Characterization A primary part of the TRE process is the perfonnance of a Phase 1 Toxicity Characterization. In association with the three samples collected for chronic biomonitoring, if this test shows toxicity, PBS&J will conduct acute toxicity screens of each of three effluent samples to see if toxicity is persistent The sample with greatest potency will be tested using the Phase 1 characterization protocol (Figure 1). If Phase 1 results warrant, one or more additional elution steps may be required for (hydrocarbon-based) toxicant verification. Cost for Task 4 will be charged according to the attached Price Schedule; analytical chemistry associated with Phase 1 will depend on analytes tested; analyses will be subcontracted at the City's preference. Estimated Task 4 COST for Testing: $450(3 screens) + $3.500 (Phase 1) + $750 (chemistry) = additional elution steps as needed up to Estimated Task 4 COST for Data Evaluation & Reporting up to (16 hrs Sr. Scientist + 4 hrs Clerical) Subtotal $ 4,700.00 $ 1.825.00 $ 2.000.00 $ 8.525.00 Task 5 - Confinnation of Toxicant Identification If a toxic sample is collected and the Phase 1 (TASK 4) provides chemical identification, effluent sampleing should be increased in order to capture another toxic sample for confinnation. This process may require: 1} additional sampling, 2} an additional full or partial Phase 1 characterization series, and 3} chemical identifications. The total cost for Task 5, based on the attached TIE price Schedule and assuming each of the above tests are performed, is estimated to be : Estimated Task 5 COST for Testing: $3.750(Phase 1) + $1200( up to 8 sample screens) + $750(chemistry) = $5,700. e e PBS&J ENVIRONMENTAL TOXICOLOGY LABORATORY Mr Stephen L Gillett City of La Porte 4 August 1999 - Page 3 EstinW:ed Task 5 COST for Data Evaluation & Reporting (16 hrs Sr. Scientist + 4 hrs Clerical) up to $ 2,000.00 Subtotal S 7.700.00 If Confinnation is successful, a plan and cost to track the source of toxicity will be needed at that time. (Projection of the cost is not possible at this time because of the varied methods). Task 6 - Reoortino and Consultino PBS&J will provide experienced, Senior Project Scientists to prepare reports and give consulting services as needed to support the City in the execution of this TRE. Labor and other direct project charges associated with reports and consulting services will be billed in accordance with the attached Standard Rate Schedule. Resumes for Dr. MacGregor, Dr. Faust Parker & Mr. James Home are attached. Also a summary of past and current TRE projects supervised by Dr. MacGregor is attached. The costs for Task 6 will very with the needs; however, based on past experience. the level of effort will be: 2 to 4 hours ($220 to $500) fer each of 4 Quarterly Activity reports (Permit required); and a final report upon identification or cessation of toxicity, not to exceed $2,500. Estimated Task 6 COST: $500(X 4) + $2.500 = $4.500.00 Total Scope of Work Costs: TASK 1 - General Outline TASK 2 - TRE Plan TASK 3- Monthly tests TASK 4- Phase 1 TASK5-Confinnation TASK 6- Consulting $ 500 $ 2.000 $10,200 + sampler rental $ 8.525 $ 7.700 $ 4.500 Grand Total up to $33.425 Schedule PBS&J can begin work immediately upon authorization by City of La Porte. Task 1 (general outline) will be submitted to City for signatures on or before 02 September 1999. Task 2 (TRE Action Plan) will be completed for your signatures and submitted to the EPA and TNRCC on or before 15 October 1999. Task 3 (Monthly biomonitoring) should commence immediately. Tasks 4, and 5 (Phase 1 Characterizationl Confirmationsl Consulting) will be initiated immediately upon identification of a suitable toxic sample during the biomonitoring program (Task 3). Task 6 (Consulting I Data evaluation) will commence with completion of Task 1 (General Outline). e e PBS&J ENVIRONMENTAL TOXICOLOGY LABORATORY Mr Stephen L Gillett City of La Porte 4 August 1999 - Page 4 Tenns and Conditions Substantial portions of the work described above will be conducted on a fixed unit-price basis; however, because the ultimate scope of this project will be determined in a step-wise fashion as data are generated and evaluated. PBS&J proposes to perform the services on a time and materials basis in accordance with the attached Standard Rate Schedule and TIE Test Price Schedule. While these costs represent PBS&J's best estimate of the work effort required; the nature of a TRE is such that the full scope of the project cannot be known a oriori. PBS&J has based these estimates on extensive experience with similar projects. PBS&J cannot be held responsible fer unforeseen circumstances that invalidate the assumptions used in these cost estimations. Nonetheless, PBS&J understands the importance of budgeted costs and presents this Scope of Work and Total Costs as not to exceed $ 3.3425.00 without written authorization from the City of La Porte. This proposal is valid for a period of 30 days. If this proposal is satisfactory to the City of La Porte, please have an authorized representative sign below and retum the original to PBS&J as authorization to proceed with this project. Authorization may be made by TASK or Groups of TASKS using Purchase Orders. We look forward to working with you and your staff at City of La Porte Public Works Department on this project If we can be of further service to you, please do not hesitate to call us at 713-9n-1500. obert MacGregor III, Ph.D. TRE Director Signature of Authorized representative for City of La Porte, Texas Attachments cc: Martin E. Arhelger, Vice President, PBS&J, Austin Dr. Faust R. Parker, Laboratory Director, PBS&J Lab, Houston James D. Home, Special Projects Director, PBS&J Lab, Houston IIIJC:.I Analyli! 1- ~J ServIces e Environmental Toxicology Chemical Testing Field Services 4 August 1999 ..t\UG 0 a 1999 Mr.Stephen L. Gillett Director of Public Works City of La Porte P.O. Box 1115 La Porte, TX 77572-1115 PBS&J Proposal No. 99991 City of La Porte Wastewater Treatment Plant 001 TNRCC Permit No,1 0206-001 NPDES Permit No. TX0022799 RE: Cost Proposal for Effluent Toxicity Reduction Evaluation (TRE) Services Dear Sir: PBS&J Environmental Toxicology Lab (PBS&J) is pleased to provide this cost proposal addressing a TRE for the City of La Porte wastewater treatment plant ('WWTP) effluent. This proposal is developed in accordance with the City permits and is fully responsive to your requirements. For your review, an effluent chronic biomonitoring test in May 1999 exhibited significant toxicity to Mysidopsis bahia at the effluent Critical Dilution of 95%. A second retest in July 1999 has exhibited significant chronic toxicity. The results of these biomonitoring failures as required by Section 4.a., page 27 must be submitted within 20 days of completed test failure; the next requirement by the TNRCC is to submit, within 45 days a general outline for initiating the TRE (see section 5.a.,pg 27) and within 90 days, submit a TRE Action Plan (see: Section 5.b.,pg 27, TNRCC Permit). The TRE is initiated on the "test completion date of the failed retest". The TNRCC permits require at least quarterly biomonitoring with the effected test species (M. Bahia) during the TRE study period. The state permit has an "escape clause" (pg 29, section 5.e) for cessation of toxicity, if no cause of toxicity is found. After a 12 consecutive monthly tests have been reported without toxicity, the City may notify the state of its intent to cease the TRE study and resume a normal biomonitoring schedule. The following Scope of Work provides a step-wise approach for the TRE process: Scope of Work Task 1 - TRE Outline PBS&J will prepare a document to be submitted to the TNRCC containing general outline items to initiate the TRE for the City of La Porte 'lNWTP. The EPA does not require this item. The outline will identify the project team from the City and PBS&J, summarize the test data that initiates the TRE and any other data or facts available concerning the toxic events. Task 1 COST: (3 hrs Sr. Scientist + 2 hrs Clerical) not more than: $500.00 ETOX Laboratory 888 W. Sam Houston Pkwy. S" Suite 110. Houston, Texas 77042-1917. Telephone: 713.977.1500. Fax: 713.977.9233. www.pbsj.com PBS&J ENVIRONMENTAL TOXICOLOGY LABORATORY e e Mr Stephen L. Gillett City of La Porte 4 August 1999 - Page 2 Task 2 - TRE Action Plan and Schedule PBS&J will prepare a comprehensive TRE Action Plan and schedule to be submitted to the TNRCC and copies to the Region 6 EPA officers. The Action Plan will provide a description of the technical approach and methodologies as required for the examination and characterization of a causative toxicant(s), a sampling plan for toxicity tests and chemical analyses, a quality assurance plan and project staff organization. Task 2 COST: (16 hrs Sr, Scientist + 4 hrs Clerical); not more than: $ 2,000.00 Task 3 - Monthlv Biomonitorina PBS&J can provide quality biomonitoring during the TRE. Because the state permit has an "escape clause" requiring at least 12 monthly tests using the effected species, M. bahia (paragragh 5.e, pg 29), this task will be costed at our normal biomonitoring rate. This cost includes sample pick-up, testing and report production. Sampler rental services are available at $75 per use day (a chronic test uses 3 samples). Task 3 COST: (12 X $850/test) $10,200.00 Additional cost for SAMPLER rental (if requested) @ $75/day (3X$75= $225 per monthly test) Task 4 - Phase 1 Characterization A primary part of the TRE process is the performance of a Phase 1 Toxicity Characterization. In association with the three samples collected for chronic biomonitoring, if this test shows toxicity, PBS&J will conduct acute toxicity screens of each of three effluent samples to see if toxicity is persistent. The sample with greatest potency will be tested using the Phase 1 characterization protocol (Figure 1). If Phase 1 results warrant, one or more additional elution steps may be required for (hydrocarbon-based) toxicant verification. Cost for Task 4 will be charged according to the attached Price Schedule; analytical chemistry associated with Phase 1 will depend on analytes test~d; analyses will be subcontracted at the City's preference. Estimated Task 4 COST for Testing: $450(3 screens) + $3.500 (Phase 1) + $750 (chemistry) = additional elution steps as needed up to Estimated Task 4 COST for Data Evaluation & Reporting up to (16 hrs Sr. Scientist + 4 hrs Clerical) Subtotal $ 4.700.00 $ 1.825.00 $ 2.000.00 $ 8.525.00 Task 5 - Confirmation of Toxicant Identification If a toxic sample is collected and the Phase 1 (TASK 4) provides chemical identification, effluent sampleing should be increased in order to capture another toxic sample for confirmation. This process may require: 1) additional sampling, 2) an additional full or partial Phase 1 characterization series, and 3) chemical identifications. The total cost for Task 5, based on the attached TIE price Schedule and assuming each of the above tests are performed, is estimated to be: Estimated Task 5 COST for Testing: $3.750(Phase 1) + $1200( up to 8 sample screens) + $750(chemistry) = $5.700. e e PBS&J ENVIRONMENTAL TOXICOLOGY LABORATORY Mr Stephen L. Gillett City of La Porte 4 August 1999 - Page 3 Estimated Task 5 COST for Data Evaluation & Reporting (16 hrs Sr. Scientist + 4 hrs Clerical) up to $ 2.000.00 Subtotal $ 7.700.00 If Confirmation is successful. a plan and cost to track the source of toxicity will be needed at that time. (Projection of the cost is not possible at this time because of the varied methods). Task 6 - Reoortina and Consultina PBS&J will provide experienced, Senior Project Scientists to prepare reports and give consulting services as needed to support the City in the execution of this TRE. Labor and other direct project charges associated with reports and consulting services will be billed in accordance with the attached Standard Rate Schedule. Resumes for Dr. MacGregor, Dr. Faust Parker & Mr, James Home are attached. Also a summary of past and current TRE projects supervised by Dr. MacGregor is attached. The costs for Task 6 will very with the needs; however, based on past experience, the level of effort will be: 2 to 4 hours ($220 to $500) for each of 4 Quarterly Activity reports (Permit required); and a final report upon identification or cessation of toxicity, not to exceed $2,500. Estimated Task 6 COST: $500(X 4) + $2.500 = $4.500.00 Total Scope of Work Costs: TASK 1 - General Outline TASK 2 - TRE Plan TASK 3- Monthly tests TASK 4- Phase 1 TASK 5- Confirmation TASK 6- Consulting $ 500 $ 2.000 $10.200 + sampler rental $ 8,525 $ 7.700 $ 4.500 Grand Total up to $33.425 Schedule PBS&J can begin work immediately upon authorization by City of La Porte. Task 1 (general outline) will be submitted to City for signatures on or before 02 September 1999. Task 2 (TRE Action Plan) will be completed for your signatures and submitted to the EPA and TNRCC on or before 15 October 1999. Task 3 (Monthly biomonitoring) should commence immediately. Tasks 4, and 5 (Phase 1 Characterizationl Confirmationsl Consulting) will be initiated immediately upon identification of a suitable toxic sample during the biomonitoring program (Task 3). ' Task 6 (Consulting I Data evaluation) will commence with completion of Task 1 (General Outline). e e PBS&J ENVIRONMENTAL TOXICOLOGY LABORATORY Mr Stephen L. Gillett City of La Porte 4 August 1999 - Page 4 Terms and Conditions Substantial portions of the work described above will be conducted on a fixed unit-price basis; however, because the ultimate scope of this project will be determined in a step-wise fashion as data are generated and evaluated, PBS&J proposes to perform the services on a time and materials basis in accordance with the attached Standard Rate Schedule and TIE Test Price Schedule. While these costs represent PBS&J's best estimate of the work effort required; the nature of a TRE is such that the full scope of the project cannot be known a Driori. PBS&J has based these estimates on extensive experience with similar projects. PBS&J cannot be held responsible for unforeseen circumstances that invalidate the assumptions used in these cost estimations. Nonetheless, PBS&J understands the importance of budgeted costs and presents this Scope of Work and Total Costs as not to exceed $ 3.3425.00 without written authorization from the City of La Porte. This proposal is valid for a period of 30 days. If this proposal is satisfactory to the City of La Porte, please have an authorized representative sign below and return the original to PBS&J as authorization to proceed with this project. Authorization may be made by TASK or Groups of TASKS using Purchase Orders. We look forward to working with you and your staff at City of La Porte Public Works Department on this project. If we can be offurther service to you, please do not hesitate to call us at 713-977-1500. obert MacGregor III, Ph.D. TRE Director ~ To t\~ Signature of Authorized representative for City of La Porte, Texas Attachments cc: Martin E. Arhelger, Vice President, PBS&J, Austin Dr. Faust R. Parker, Laboratory Director, PBS&J Lab, Houston James D. Home, Special Projects Director, PBS&J Lab, Houston pH :~~_-~J r - GIa:F~";; FIII~I Characterization of Toxic Effluent Phase 1 pH = initial Glass Fiber Filler J -----+--.---- ----_. E_ ==r_ pH=3 Glass Fiber Filter I---;;:-:PE C'8 SPE I C,8-SPE , - -.---\ ..~~ ~,~~~- - G:OLlTE I Na Purge NaThio EDTA Na Purge ,--------_., .__.t:_ Neutralization .. .. 48 hr Acute or 7-Day Chronic Toxicity Test with Mysidops/s ball'a ,--..... , .. , , -:f Neutralization C-.[.' -- ---, ...._n_ .. e e Phase I Toxicant Characterization Tests TREATABILITY APPROACH IDENTIFY TOXICANT(S) Phase II Toxicant Identification Analyses Phase III Toxicant Confirmation Procedures Toxicity Treatability Evaluations Source Investigation Control Method Selection and Implementation Post Control Monitoring FIgure 1-2. Flaw dlart for toxicity reduction evaluatlana. '~e.~,. ~ j"':eE..s 1-5