J.01_SOW.pdf

Section C ‐ Description/Specifications/Statement of Work

C.1 Introduction

The Contractor shall, as an independent contractor and not as an agent of the Government, perform non‐personal services for the Ocean Outfall Sampling and Monitoring Program for the South Bay

International Wastewater Treatment Plant (SBIWTP) located in San Ysidro, San Diego County, California, in accordance with the Description of Services in Section C.3 herein.

C.2 Summary

The Contractor shall provide all labor, material, supervision, management, overhead, O&M and other resources required to perform Water Quality Sampling, Analysis Monitoring, Benthic Monitoring, and

Fish Monitoring for the wastewater discharge to the Pacific Ocean through the South Bay Ocean Outfall in San Diego, California. The Contractor shall also provide all the laboratory services, data interpretation, trend analyses, and reporting required for the sampling monitoring program. The monitoring program shall be in compliance with National Pollutant Discharge Elimination System (NPDES) Permit No:

CA0108928, Order Number: R9‐2014‐0009 as amended by order nos. R9‐2014‐0094 and R9‐2017‐0024, and with the California Regional Water Quality Control Board (CRWQCB) Monitoring and Reporting

Program as outlined in the permit. Familiarity with the permit is critical to the success of the program and is a requirement of this statement of work.

C.3 General Information

C.3.1 The U.S. Section, International Boundary and Water Commission (USIBWC) Field Office in San

Diego shall be responsible for making arrangements and coordinating with Mexico, for all the sampling and monitoring being performed in Mexico. The Contractor shall provide the USIBWC with a schedule plan for the sampling and monitoring program within thirty (30) days of contract award.

C.3.2 The purpose of the Monitoring and Reporting Program is to assure compliance with the water quality objectives contained in the NPDES permit, by collecting samples at representative stations in the area within the receiving water. In addition, the program is being performed to aid in the prevention of the degradation of the marine environment outside the area of the zone of initial dilution.

C.3.3 The Contractor shall furnish Environmental Engineering Services as defined herein: including incidental labor, laboratory services for the samples, material, supplies, plans, equipment, investigations, data interpretation and trend analysis service, superintendence and all the transportation

(boats, vehicles, etc.) necessary to perform the described monitoring program for the South Bay Ocean

Outfall as detailed in the NPDES permit.

C.3.4 The Contractor shall appoint a project coordinator or manager and alternate to serve as a single point of contact and liaison between the Contractor and the Contracting Officer (CO) and/or Contracting

Officer's Representative (COR) for the services required under this contract. The project manager shall be responsible for the coordination of the services provided under this scope of work, and shall respond to questions regarding clarification of sample monitoring results and project deliverables. Environmental

Engineering Services shall be accomplished with adequate internal controls and review procedures to minimize errors and omissions, and provide for the technical adequacy of information.

C.3.5 NPDES permit document No. CA0108928 containing the station location map, etc., is provided as attachment in section J. The NPDES document details all of the requirements for the sampling and monitoring of the San Ysidro International Wastewater Treatment Plant. This statement of Work is only to address the sections of the permit dealing with the sampling and analysis requirements for the receiving water, namely the ocean outfall and shoreline monitoring requirements. This Statement of

Work does NOT include any work on the influent, effluent, canyon collectors and Tijuana River.

C.3.6 Salaries and Benefits: The Contractor shall be responsible for complying with all Department of

Labor requirements and Municipal Employee Association (MEA) collective bargaining agreements.

C.3.7 Employee Competency, Conduct, and Integrity: The Contractor shall establish and maintain satisfactory standards of employee competency, conduct and integrity; and shall take such disciplinary action with respect to its employees as may be necessary. Upon written request from the Contracting

Officer (CO), the Contractor shall promptly remove any employee whom the CO deems incompetent, careless, insubordinate or whose continued employment is considered contrary to the public interest.

The CO's decision relating to these matters is final.

C.3.8 The Contractor shall provide an Organization Chart that indicates proposed staffing for the sample monitoring operation. The Organizational Chart shall be provided to the Government within thirty (30) days of Notice to Proceed. Whenever organizational changes are made, the Contractor shall furnish a revised Organizational Chart no later than five (5) days prior to the change. The Chart shall contain as a minimum: the position title, total number of full‐time personnel on‐site, chain of command including the relationship between the company headquarters and the on‐site organization indicating any headquarters support, e.g., accounting, legal, labor relations, and types and skill level of personnel in each position.

C.3.9 Position Descriptions: The Contractor shall keep at the site a current position description for each position indicated on the Contractor's organizational chart. As a minimum, position descriptions shall indicate the title, duties, responsibility and function assignments, and the minimum qualifications required to fill the position. These position descriptions shall be made available upon request to the

Contracting Officer or representative.

C.4 Background information

C.4.1 Since the 1930's, raw sewage flowing into the United States from Mexico has posed a serious threat to public health and the environment in the South Bay Communities of San Diego. This problem has gradually worsened over the years with the substantial growth of Tijuana's population and industrial sector. In July 1990, the U.S. and Mexico agreed to build an International Wastewater Treatment Plant

(IWTP) on the U.S. side of the border as part of a regional solution.

C.4.2 The IWTP service area is located in eastern Tijuana, Mexico. The IWTP treats up to twenty‐five million gallons per day (25 MGD) of sewage from Tijuana with most of the remaining sewage being transported to Mexico's treatment plant. Wastewater treated at the IWTP is discharged to the Pacific

Ocean through the South Bay Land Outfall (SBLO) followed by the South Bay Ocean Outfall (SBOO).

C.4.3 The South Bay Ocean Outfall extends 23,600 feet from the South Bay Land Outfall in a westerly direction from near the mouth of the Tijuana River. The South Bay Ocean Outfall consist of a vertical drop shaft descending 190 feet, a tunnel extending 18,970 feet, a riser assembly ascending 160 feet, a seafloor outfall extending 4,670 feet, and a wye diffuser. The diffuser is designed for a 100: 1 dilution ratio. The South Bay Ocean Outfall is designed for an average daily flow rate of 174 MOD with a peak hydraulic capacity of 333 MGD.

C.4.4 The dilution of 100: 1 is used for the calculation of discharge specifications for the NPDES permit. The State Water Resources Control Board (SWRCB) adopted a revised Water Quality Control

Plan for Ocean Waters of California on March 22, 1990.

C.4.5 The Water Quality Control Plan, San Diego Basin (9) was adopted by the Regional Board on

September 8, 1994 and subsequently approved by the SWRCB on December 13, 1994. The Basin Plan relies primarily on the requirements of the Ocean Plan for protection, however the Basin Plan establishes additional water quality objectives for dissolved oxygen and pH.

C.5 General Monitoring and Reporting Provisions

C.5.1 Samples and measurements taken as required herein shall be representative of the South Bay

Ocean Outfall waters. All samples shall be taken at the monitoring station points specified in this contract, before the waste stream joins or is diluted by any other waste stream, body of water, or substance. All monitoring station points are identified in the NPDES permit as amended. Monitoring points are approved by the Regional Board Executive Officer (hereinafter Executive Officer), and shall not be changed. Samples shall be collected at times representative of "worst case" conditions with respect to compliance with the requirements of the NPDES Permit.

C.5.2 Appropriate monitoring and sampling methods consistent with accepted scientific practices, shall be elected and used to assure accuracy and reliability of the monitoring and sampling program.

Guidance in acceptable practices can be obtained from the following reference: ''NPDES Compliance

Sampling Manual," U. S. Environmental Protection Agency, Office of Water Enforcement. Publication

MCD‐51, 1977,140 pp.

(Available from the General Services Administration (BFFS), Centralized Mailing Lists Services, Building

41, Denver Federal Center, Denver, CO 80225), or most recent edition.

C.5.3 All monitoring instruments and devices used by the Contractor to fulfill the prescribed monitoring program shall be properly maintained and calibrated as necessary to assure their continued accuracy. Sample monitoring must be conducted according to United States Environmental Protection

Agency (USEPA) test procedures approved under Title 40 of the Code of Federal Regulations Part 136 (40

CFR 136), "Guidelines Establishing Test Procedures for the Analysis of Pollutants" as amended, and unless other test procedures have been specified in this monitoring contract or the referenced NPDES permit.

C.5.4 If there is any increase in the frequency of sample monitoring, the results of this monitoring shall be included in the calculation and reporting of the data submitted. Any increased frequency of sample monitoring other than specified in this contract or amended in the contract, shall be made at no cost to the government. Any amendments to the NPDES permit during the contract period shall be modified appropriately in the contract.

C.5.5 The Contractor shall retain records of all monitoring information, including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this contract, and any enforcement order issued by the Regional Board.

Records shall be maintained for a minimum of five years from the date of the sample, measurement, report, or application. This period may be extended during the course of any unresolved litigation regarding this discharge or when requested by the Contracting Officer. The Contractor shall provide all records of monitoring information, analyses, etc., to the contracting officer when contract is terminated in a hard copy and electronic copy (Latest version of Microsoft Office Software).

C.5.6 Records of monitoring information shall include:

a. The date, exact location, and time of sampling or measurements;

b. The individual(s) who performed the sampling or measurements;

c. The date(s) analyses were performed;

d. The laboratory and individual(s) who performed the analyses;

e. The analytical techniques or methods used; and

f. The results and quality control/quality assurance of all such analyses.

C.5.7 Calculations for limitations which require averaging of measurements shall utilize an arithmetic mean, unless otherwise specified in, established accepted scientific practices or USEPA test procedures.

The Contractor shall report the analysis results, calculation results, data, and equations used in calculations.

C.5.8 All analyses shall be performed in a laboratory certified by the California Department of Health

Services environmental laboratory accreditation program (ELAP), and approved by the Contracting

Officer.

a. The Contractor shall have, and implement, an acceptable written quality assurance (QA) plan for laboratory analyses. A draft QA Plan shall be submitted to the Government for comments and approval within thirty (30) calendar days of Notice to Proceed. The Government shall provide written comments to the Contractor within ten (10) calendar days of receipt of the QA plan. The Contractor shall incorporate Government review comments into the QA Plan, and the final plan. One (1) electronic copy in Word, one clean copy in PDF, and one hard copy of the final shall be submitted to the Government within ten (10) calendar days of receipt of Government review comments. The Contractor shall submit an Annual QA Report by March 15 of each year, which summarizes the QA activities for the previous year. Should the due date fall on a weekend or holiday, the QA Plan or Annual Report shall be due on the first workday thereafter.

B. Duplicate chemical analyses shall be in accordance with USEPA test procedures. When requested by the USEPA or the Regional Board through the Contracting Officer, the Contractor shall participate in the National Pollutant Discharge Elimination System (NPDES) discharger monitoring report quality assurance (QA) performance study.

c. If only one measurement is made during the time period associated with receiving water limit, that single measurement shall be used to determine compliance with the receiving water limitation for the entire time period.

d. Laboratory Method Detection Limits (MDLs) and Practical Quantitation Levels (PQLs) shall be identified for each constituent in the matrix being analyzed with all reported analytical data. Acceptance of the data shall be based on demonstrated laboratory performance.

e. The Contractor shall be responsible for the payment of any fines levied against the permit by any regulatory agency having jurisdiction because of the Laboratory’s failure to provide the results within the time frames specified in the contract or the USEPA approved methods or procedures.

C.5.9 The Contractor shall report to IBWC, all instances of permit non‐compliance not reported under

Standard Provisions – Reporting V.C, V.D, and V.E above at the time monitoring reports are submitted.

The reports shall contain the information listed in Standard Provision – Reporting V.E..

C.5.10 A grab sample is an individual sample of at least 100 milliliters collected at a randomly selected time over a period not exceeding 15 minutes.

C.5.11 For all bacterial analyses, sample dilutions shall be performed so that the range of values extends from 2 to 16,000 Colony Forming Units (CFU). The detection method used for each analysis shall be reported with the results of the analysis.

C.5.12 The detection methods used for each analysis shall be reported with the results of the analysis.

Detection methods used for coliforms (total and fecal) shall be those listed in 40 CFR part 136 or any improved method determined by the San Diego Water Board (and approved by USEPA) to be appropriate. Detection methods used for enterococcus shall be those presented in USEPA publication

Test Methods for Escherichia coli and Enterococci in Water by Membrane Filter Procedure (USEPA 600/4‐

85/076), listed under 40 CFR Part 136, or any other method approved by the San Diego Water Board.

C.5.13 Contract amendments may be made by the Contracting Officer at any time, and may include a change in the location of sampling stations and/or a reduction or increase in the number of parameters to be monitored, the frequency of monitoring, the number of sampling stations and/or the number and/or size of samples collected. All contract amendments shall be negotiated and agreed upon by the

Government and the Contractor. However, amendments deemed critical, urgent or an emergency by the Government may be negotiated after the issue date and/or after Contractor performance has begun or has been completed.

C.5.14 By June 15 of each year, the Contractor shall submit an annual report to USIBWC which contains tabular and graphical summaries of the monitoring data obtained during the previous year. Contractor shall submit to USIBWC the draft annual report for review (3 copies), a minimum of ten (10) working days prior to June 15. The Government shall provide written comments to the Contractor within five (5) workdays after receipt of the draft report. The Contractor shall incorporate all comments and submit the final report to the Government in three (3) copies and 1 electronic copy by close of business on June

15 of each year. Should the due date fall on a weekend or holiday, the report shall be due on the first workday thereafter. The report shall restate, for the record, the laboratories used by the Contractor to monitor compliance with the NPDES permit no. CA 0108928, and this contract. The Annual Report shall provide a summary of performance relative to the requirements in the Monitoring and Reporting

Program. Annual report shall provide an executive summary of annual results, and provide conclusions and recommendations.

C.5.15 The monitoring reports shall be signed by an authorized person as required by 40 CFR 122.44.

C.5.16 The sampling frequency of "daily" means that samples shall be collected seven days per week.

"Weekly" samples shall be collected such that each day of the week is represented during a seven‐week period.

C.5.17 Technical support staff shall be available to provide consultation to USIBWC, and the technical support staff shall attend meetings at USIBWC's request.

C.5.18 A monthly narrative report (1 page) shall be provided by the 10th of the month following the period reported. The narrative shall address the accomplishments during the period reported and plans for the following month. At a minimum it will contain items of interest or significance to the monitoring and reporting effort.

C.5.19 All reports shall include the test results, the limits/standards provided in the NPDES Permit, and the units of the test results and limits shall match those given in the Permit (i.e. if the permit specifies the limits in mg/I, the results should be in mg/I, and not in ug/l).

C.5.20 All Reports (monthly, quarterly, semi‐annual, and annual) shall be submitted to USIBWC in three

(3) hard copies and one (1) electronic copy. USIBWC will submit the final reports to the Regional Board.

The Contractor shall submit all reports to USIBWC according to the following schedule:

REPORT REPORT PERIOD REPORT DUE

MONTHLY:

Narrative Report

January, February, March April, May, June, July August, September, October, November, December

By the 10th of the month following the period reported

MONTHLY: Receiving Water, including all continuous, daily, weekly, and monthly monitoring results

January, February, March, April, May, June, July, August, September, October, November, December

By the 25th day of the month

QUARTERLY: Fish Trawl reports, including Megabenthic Invertebrate Monitoring

January‐March April‐June July‐September October‐December

May 15 August IS November 15 February 15

SEMIANNUAL: Sediment and infauna reports, trawl fish bioaccumulation reports, rig fishing reports

January‐June July‐December

August 15 February 15

ANNUAL: Report described in General Monitoring and Reporting Provision No. A.21 of the MRP, QA, and receiving water reports.

January‐December June 15 Annual QA report shall be provided by March 15th of each year

C.5.21 All reports (monthly, quarterly, semi‐annual, and annual) will be submitted in electronic format.

Feature classes, geodatabases, and metadata (where available) will be submitted in native GIS format.

The geodatabase files are to be provided on a quarterly schedule, within two weeks of the quarterly reports. Consideration should be given to group the data (batch) with other tasks and thus minimize duplication of work. GIS Data submittals will be coordinated with the USIBWC GIS Manager. The format for data submittals will be specified in the metadata (where available) of the feature classes, rasters and geodatabases, C.6 Receiving Environment Monitoring

C.6.1 To determine compliance with water quality standards, the receiving water quality monitoring program must document conditions in the vicinity of the "Zone of Initial Dilution" (ZID) boundary, at reference stations, and at areas beyond the ZID where discharge impacts might be reasonably expected.

Monitoring must reflect conditions during all critical environmental periods. Receiving environment monitoring shall be conducted as specified below.

C.6.2 Reports of marine monitoring surveys conducted to meet receiving water monitoring requirements of his contract shall include, as a minimum, the following information:

a. A description of climatic and receiving water characteristics at the time of sampling (weather observations, floating debris, discoloration, wind speed and direction, swell or wave action, time of sampling, tide height, etc.).

b. A description of sampling stations, including differences unique to each station (e.g., station location, sediment grain size, distribution of bottom sediments, rocks, shell litter, calcareous worm tubes, etc.).

c. A description of the sample collection and preservation procedures used in the survey.

d. A description of the specific method used for laboratory analysis.

e. An in‐depth discussion of the results of the survey. All tabulations and computations shall be explained.

C.6.3 Sampling Stations

Sampling stations are listed for each type of testing to be done in the NPDES Permit CA0108928 as amended. These stations may change based on permit amendments or new permits. Contractor will need to refer to the types of stations and their locations as displayed on the map of stations located in

Attachment B of the Permit and listed in detail in Attachment E – Monitoring and Reporting Program

(MRP), Table E‐1. Discharge points INF‐001, EFF‐001, and the transboundary stations are NOT part of this contract.

C.6.4 Receiving Water Sampling and Analysis Requirements

C.6.4.1 Receiving water monitoring shall be conducted as described in NPDES Permit CA0108928 as amended, per the Monitoring and Reporting Program located in Attachment E Section IV RECEIVING

WATER MONITORING REQUIREMENTS, Parts A and B.

C.6.4.2 The Contractor shall be responsible for coordinating with other ocean dischargers in the San

Diego Region for an annual regional kelp bed aerial photography survey. The Contractor shall be responsible for all associated costs of the survey.

C.6.4.3 The Contractor shall sample, test and analyze Tijuana wastewater from two mobile sites on a weekly basis (i.e., one sampling event at two sample sites every week). Each sampling event analysis shall measure Cyanide, Methylene Blue Active Substances (MBAS), Organophosphorus Pesticides, Organochlorine Pesticides & PCBs, Volatile Organic Compounds, Semi‐volatile Organic Compounds, and

Metals (total and dissolved).

C.6.4.4 Plume tracking requirements shall be conducted under a separate contract and are NOT part of this contract.

C.7 Benthic Monitoring

C.7.1 Benthic and sediment monitoring shall be conducted as described in NPDES Permit CA0108928 as amended, per the Monitoring and Reporting Program located in Attachment E Section IV RECEIVING

WATER MONITORING REQUIREMENTS, Part C.

C.7.2 Sediment toxicity monitoring plan is required and shall be submitted to the IBWC for review within thirty (30) of the contract to be submitted to the regional board for approval. Contractor is responsible for addressing and receiving approval of the plan as required by the regional board.

C.7.3 Benthic community samples shall be collected using the guidance specified in the most recent field manual developed for the Southern California Bight Regional Monitoring Program. The benthic benthic samples shall be collected using a 0.1‐square meter modified Van Veen grab sampler. These grab samples shall be separate from (but adjacent to as much as possible) samples collected for sediment grain‐size and chemistry analyses. The samples shall be sieved using a 1.0‐millimeter mesh screen. The benthic organisms retained on the sieve shall be fixed in 10 percent buffered formalin, and transferred to at least 70 percent ethanol within two to seven days of storage. Benthic organisms, obtained during benthic monitoring shall be counted and identified to as low a taxon as possible.

Community analyses shall consist of number of species, number of individuals per species, and total numerical abundance. Required reports shall consist of the raw data (number of individuals per species) along with analysis of community parameters. Community parameters shall be calculated for each 0.1 square meter grab sample and summarized per station as:

i. Number of species

ii. Total numerical abundance

iii. Benthic Response Index (BRI)

iv. Swartz’s 75 percent dominance index

v. Shannon‐Weiner’s diversity index (H)

vi. Pielou eveness index (J)

In addition to summarizing the above community structure parameters at each station, a more rigorous assessment shall be performed as detailed in this MRP, section IVC.7.4

Random Sampling. An additional array of forty (40) randomly selected stations shall be sampled and analyzed annually for sediment chemistry and benthic community conditions, following the procedures outlined in Benthic Monitoring requirements. The stations shall be selected each year by USEPA using the USEPA probability‐based EMAP design. The area shall extend from the mouth of the San Dieguito

River south to the Mexican border. Results shall be included in the annual receiving water report.

C.8 Fish Monitoring Requirements

C.8.1 Fish and invertebrate monitoring shall be conducted as described in NPDES Permit CA0108928 as amended, per the Monitoring and Reporting Program located in Attachment E Section IV RECEIVING

WATER MONITORING REQUIREMENTS, Part D.

C.8.2 Fish trawls shall be conducted to assess the structure of demersal fish and megabenthic invertebrate communities. and the presence of priority pollutants in fish. Single community trawls for fish and invertebrates shall be conducted semi‐annually in the winter (e.g., January) and summer (e.g., July) at seven trawl stations designated SD15–SD21 at the locations specified in Table E‐1. Trawls shall be conducted using a Marinovich 7.62 m (25 ft) head rope otter trawl, using the guidance specified in the field manual developed for the Southern California Bight Regional Monitoring Program. In order to minimize negative impacts that may occur due to unsuccessful trawling efforts associated with unusual environmental conditions, the requirement to conduct trawls during any given period may be postponed or waived at the discretion of the Executive Officer of the San Diego Water Board, in concurrence with USEPA, upon receipt of written justification provided by the Discharger. Examples of such unusual events include the presence of large populations of pelagic red crabs (Pleuroncodes planipes) associated with El Niño and the occurrence of large squid egg masses that prevent hauling in the trawl nets.

C.8.3 Chemical analyses of fish tissue shall be performed annually (October) on selected target species collected at or near the trawl stations. The list of constituents is listed in Table E‐9 of the permit.

C.8.4 The species targeted for analysis at the trawl stations shall be primarily flatfish. The targeted species include but are not limited to the following: Pacific sanddab (Citharichthys sordidus), longfin sanddab (Citharichthys vanthostigma), big mouth sole (Hippoglossina stomata), and hornyhead turbot

(Pleuronichthys verticalis). The California scorpionfish (Scorpaena guttata) and the halfbanded rockfish

(Sebastes semicinctus) shall be targeted at sites that do not contain sufficient number of flatfish.

C.8.5 Rig fishing shall be performed annually (October) to monitor the uptake of pollutants in fish which are consumed by man in order to determine the impact on public health. and to assess the impacts on local fish populations. Fish shall be collected by hook and line or by setting baited lines from within zones surrounding rig fishing stations RF‐3 and RF‐2 listed in Table E‐1 and as detailed in the permit.

C.8.6 Three replicate composite samples of the target species shall be obtained from each zone. Each composite shall consist of a minimum of three individual fish. Muscle tissue shall be chemically analyzed for the same set of constituents as trawl‐caught fish specified in Table E‐9 of the permit.

C.9 Resampling

If additional coliform resampling at the shore line and kelp bed stations is required per the permit requirements. the cost of the resampling shall be at the unit price set forth in the separately priced contract line items in Section B of the contract. The Contractor shall not perform the additional sampling without the verbal approval of the Contracting Officer or the Contracting Officer's Authorized

Representative. The cost of fifty (50) resampling events is included in the total amount of the contract

Any resampling costs not used by the Contractor shall be deducted by means of a modification to the contract by September 1st of each fiscal year. If the resampling events exceed fifteen during any fiscal year, the costs will be negotiated separately and incorporated into the contract by means of a modification.

C.10 Special Projects

In the event of performance of special projects or special studies required by CRWCQB in compliance with the NPDES permit, costs will be negotiated separately and included in the contract by means of a modification.