W911SA22Q3096 Attachment 5 - FHL Monitoring Reporting Program.pdf

Central Coast Regional Water Quality Control Board March 21, 2022 Sent Via Electronic Mail Elizabeth R. Clark Environmental Division Chief, Director of Public Works USAG Fort Hunter Liggett Building 238 California Ave.

Fort Hunter Liggett, CA 93928-7000 Email: elizabeth.r.clark14.civ@army.mil

Dear Ms. Clark, UNITED STATES ARMY GARRISON FORT HUNTER LIGGETT WASTEWATER

TREATMENT PLANT, JOLON, MONTEREY COUNTY:

• NOTICE OF APPLICABILITY FOR ENROLLMENT IN ORDER WQ 2014-0153-

DWQ, GENERAL WASTE DISCHARGE REQUIREMENTS FOR SMALL

DOMESTIC WASTEWATER TREATMENT SYSTEMS

• TRANSMITTAL OF MONITORING AND REPORTING PROGRAM ORDER NO.

R3-2022-0025

• TERMINATION OF INDIVIDUAL PERMIT ORDER NO. 94-031

The Central Coast Regional Water Quality Control Board (Central Coast Water Board) reviewed the Form 200 Report of Waste Discharge (received on January 3, 2022), and available documents associated with the domestic wastewater treatment system owned by the United States Army Reserve Command Headquarters and operated by the United States Army Garrison (USAG) Fort Hunter Liggett. The wastewater treatment plant is currently regulated pursuant to Order No. 94-031. On September 23, 2014, the State Water Resources Control Board (State Water Board) adopted WQ-2014-0153- DWQ General Waste Discharge Requirements for Small Domestic Wastewater Treatment Systems (General Permit). The Central Coast Water Board reviewed your facility information and determined the updated permit requirements and monitoring and reporting program contained in the General Permit are more appropriate for your facility than Order No. 94-031.

This letter also includes wastewater treatment plant operation summary, site-specific requirements and limitations (Attachment 1), figures (Attachment 2), and the monitoring and reporting program (Attachment 3).

USAG must comply with the following:

1. General Permit – USAG must comply with all conditions and requirements of the

General Permit and this notice of applicability, including attachments. As mailto:elizabeth.r.clark14.civ@army.mil

Fort Hunter Liggett NOA March 21, 2022

- 2 -described in the General Permit, ongoing operation, maintenance, monitoring, and reporting are required. A copy of the General Permit can be found electronically at the following link:

https://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/ 2014/wqo2014_0153_dwq.pdf

2. Monitoring and Reporting Program – USAG must comply with the requirements of Monitoring and Reporting Program No. R3-2022-0025 enclosed with this letter (Attachment 3). Your first semiannual report is due on August 1, 2022.

Monitoring reports and annual reports must be provided electronically in searchable PDF with the Central Coast Water Board’s current transmittal sheet found at the link below as the cover page. The transmittal sheet must be signed.

https://www.waterboards.ca.gov/centralcoast/water_issues/programs/wastewater _permitting/docs/transmittal_sheet.pdf

USAG must submit all reports/documents and laboratory data (using the transmittal sheet as the cover page) to the publicly accessible State Water Board’s GeoTracker1,2 database with applicable Electronic Submittal of Information (ESI) requirements under the wastewater system – specific global identification number WDR100037150 over the internet at:

https://www.waterboards.ca.gov/ust/electronic_submittal/index.html

The attached monitoring and reporting program outlines the GeoTracker electronic reporting requirements.

3. Fees – USAG paid an annual fee on November 24, 2020, for coverage in the existing individual permit, Order No. 94-31. This payment covers permit fees for the 2020-2021 fiscal year. On December 8, 2021, USAG was sent their invoice for the 2021-2022 fiscal year.

USAG must pay an annual fee to maintain coverage in the General Permit.

Annual fees are determined by the State Water Board fee program and cover the state fiscal year of July 1 through June 30. Your annual fee is currently $23,780.

Fees are charged (and updated) annually and are based on the facility’s threat and complexity ratings. Your facility is currently rated with a threat and complexity of 2B.

1 Information for first-time GeoTracker users is available at:

https://www.waterboards.ca.gov/ust/electronic_submittal/docs/beginnerguide2.pdf

2 Additional information available at: http://geotracker.waterboards.ca.gov/ https://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2014/wqo2014_0153_dwq.pdf https://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2014/wqo2014_0153_dwq.pdf https://www.waterboards.ca.gov/centralcoast/water_issues/programs/wastewater_permitting/docs/transmittal_sheet.pdf https://www.waterboards.ca.gov/centralcoast/water_issues/programs/wastewater_permitting/docs/transmittal_sheet.pdf https://www.waterboards.ca.gov/ust/electronic_submittal/index.html

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A copy of the current state fee schedule is available at the following link:

https://www.waterboards.ca.gov/resources/fees/water_quality/#wdr

4. Notification – The Central Coast Water Board will be notified of your enrollment at a regularly scheduled public meeting on June 16-17, 2022. Details about that meeting are available on our website at:

http://www.waterboards.ca.gov/centralcoast/board_info/agendas/

5. Future Discharge Modifications – Pursuant to Water Code section 13260, you must inform the Central Coast Water Board at least 120 days prior to modifying your discharge. If there are any significant changes in either treatment or disposal methodologies, or the volume or character of the treated wastewater, you must notify the Central Coast Water Board immediately of such changes.

6. Responsible Party – USAG is responsible for the management and disposal of the wastewater in compliance with the conditions of the General Permit. Any noncompliance with this General Permit constitutes a violation of the California Water Code and subjects USAG to enforcement action and termination of enrollment under this General Permit.

7. Change in Ownership – In the event of any change in control or ownership of the property, USAG must notify the succeeding owner or operator of the existence of this General Permit by letter, a copy of which shall be immediately forwarded to the Central Coast Water Board. In addition, the succeeding owner must submit a Form 200 for enrollment in the General Permit. Once both of these things have occurred, the new owner or operator can be enrolled in the General Permit and your enrollment in the General Permit can be terminated. Contact the Central Coast Water Board for a form 200.

8. Certified Operator – USAG is required to comply with the operator certification requirements3 administered by the State Water Board’s Office of Operator Certification, which currently requires a Class II certified operator onsite to maintain and operate the treatment system.

3 Title 23 Division 3. Chapter 26 Wastewater Treatment Plant Classification, Operator Certification and Contract Operator Registration.

https://www.waterboards.ca.gov/water_issues/programs/operator_certification/docs/ocr_clean.pdf https://www.waterboards.ca.gov/resources/fees/water_quality/#wdr http://www.waterboards.ca.gov/centralcoast/board_info/agendas/ https://www.waterboards.ca.gov/water_issues/programs/operator_certification/docs/ocr_clean.pdf

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If you have any questions, please contact Mark Lemus at (805) 549-3703 or by email at Mark.Lemus@Waterboards.ca.gov, or Jennifer Epp at Jennifer.Epp@waterboards.ca.gov.

Sincerely, for Matthew T. Keeling Executive Officer

Attachments:

Attachment 1: Wastewater System Operation Summary, and Site-Specific Requirements and Limitations

Attachment 2: Figures Attachment 3: Monitoring and Reporting Program Order No. R3-2022-0025 cc:

Michael Moeller, USAG Fort Hunter Liggett, Michael.b.moeller.civ@army.mil Sharon Denker, Central Coast Water Board, Sharon.denker@waterboards.ca.gov Mark Lemus, Mark.Lemus@waterboards.ca.gov Jennifer Epp, Jennifer.Epp@Waterboards.ca.gov WDR Program, RB3-WDR@Waterboards.ca.gov GeoTracker

ECM/CIWQS = CW-225534

GeoTracker No. = GT- WDR100037150 Rev 1/6/22 Subject Name = FHL New Wastewater Permit \\ca.epa.local\rb\rb3\shared\wdr\wdr facilities\monterey co\fort hunter liggett\2022\general order enrollment\0153 noa and mrp\fort_hunter_liggett_noa_mrp_0153.docx mailto:Mark.Lemus@Waterboards.ca.gov mailto:Jennifer.Epp@waterboards.ca.gov mailto:Michael.b.moeller.civ@@army.mil mailto:Sharon.denker@waterboards.ca.gov mailto:Mark.Lemus@waterboards.ca.gov mailto:Jennifer.Epp@Waterboards.ca.gov mailto:RB3-WDR@Waterboards.ca.gov

ATTACHMENT 1

WASTEWATER SYSTEM OPERATION SUMMARY, AND SITE-SPECIFIC

REQUIREMENTS AND LIMITATIONS

1. OWNERSHIP AND WASTEWATER SYSTEM DESCRIPTION

Ownership and facility information submitted by USAG to the Central Coast Water Board is shown in Table 1.

Table 1. Owner and Wastewater Facility Information Facility Name United States Army Garrison Fort Hunter Liggett Facility Address Building 238 California Ave., Jolon, CA 93928-7000 Parcel Numbers 201-021-004-000 Township and Range Section 29, Township 22 South, Range 7 East, Sections 28 and 29, Mount Diablo Principal Meridian Monterey, CA

Latitude/Longitude 35.99074/-121.23330 Onsite Manager Elizabeth Clark, Environmental Division Chief, Director of Public Works, Fort Hunter Liggett Owner of Facility United States Army Reserve Command

Headquarters Legally Responsible Official of Owner

Lisa M. Lamb Col, LG, Fort Hunter Liggett Garrison Commander

Owner Mailing Address 4710 Knox St. Fort Brag, NC 28310 Billing Address Building 238 California Ave., Jolon, CA 93928-

70000 Design Flow (gallons per day, gpd)

Maximum daily capacity (dry weather flow) 1,000,000

Baseline Flow (average annual flow) in gpd

50,000

Waste type and Service Area Domestic wastewater from Family housing, offices, storage, training and maintenance facilities with the Fort Hunger Liggett Cantonment Area.

Threat to Water Quality 2 Complexity B

The San Antonio River is the nearest surface water located approximately 2,000 feet east and south of the facility. The San Antonio River meets Lake San Antonio

Fort Hunter Liggett Attachment 1 March 21, 2022 approximately 11 miles south east of the facility. The facility is located above the western portion of Lockwood Valley Groundwater Water Basin, Department of Water Resources Basin 3-006. Three onsite wells constructed in 1993 around the treatment lagoons indicate depth to groundwater levels ranging from 8 feet to 15 feet. Based on historical test bore holes, depth to groundwater near the disposal spray field historically varied from 4 feet to greater than 10 feet depending on the season.

2. WASTEWATER SYSTEM OPERATION SUMMARY

The treatment system is composed of conveyance piping, influent screening, secondary treatment via aerated lagoons. Wastewater can be valved to either the Setting Pond or Lagoon 2 before it is stored in Lagoon 2 where it can undergo additional treatment.

Wastewater effluent either evaporates from the treatment lagoons or is pumped to a secure 105-acre spray disposal field approximately a mile east of the facility. Since the average daily flows of the facility are typically at or below 5 percent of the capacity, the facility can defer effluent disposal for weeks if not months of the year. A summary of the system is included in Table 2 below. A facility site map and process flow diagram are shown in Attachment 2.

Table 2. Permitted Treatment & Disposal Technologies and Capacity Flows Permitted4 Influent Average Daily Flow 100,000

GPDInfluent Average Flow 50,000 GPD (monthly)

Pretreatment Industrial waste containing grease or oils is pretreated before it enters the wastewater collection system, primarily by way of oil/water separators and grease traps.

Headworks/Preliminary Treatment

Wastewater passes through a comminutor followed by a screening auger for screenings removal.

Treatment

Treatment is provided by three facultative, partial-oxidation, aerated lagoons equipped with floating aerators, capacities as follows:

Settling pond: Volume - 4.6 MG, detention time - 58 days Lagoon 1: volume - 10.4 MG, detention time - 130 days Lagoon 2: volume - 8.7 MG, detention time - 198 days

Effluent Storage Effluent can be stored in Lagoon 2 while a portion of the wastewater evaporates or is pumped to the spray irrigation disposal site.

Disposal

Treated wastewater effluent is conveyed to the 105-acre spray irrigation disposal site via a 12-inch pipe before being distributed to 10-inch pipes discharging through 48 large sprinklers mounted on 4-foot risers. The sprinklers spray in full circles and half arcs near the boundary of the fenced in spray irrigation disposal field.

4 USAG has stated that the facility has a design flow of 1 MGD (million gallons a day), however this permit only allows for the discharge of up to 100,000 GPD.

Biosolids/Sludge Production and Handling

Sludge accumulated in the lagoons is infrequently removed. A sludge management plan is required and will be developed as part of this enrollment.

Three Year Average Wastewater Effluent Quality Summary4

TSS: 50 mg/L

BOD: 14 mg/L Total Nitrogen: 7.45 mg/L TDS: 493 mg/L Sodium: 75 mg/L Chloride: 76 mg/L

1 GPD = gallons per day

2 MG = million gallons 3 mg/L = milligrams per liter

4 Data range January 2019-December 2021 submitted in Report of Waste Discharge.

The facility occasionally encounters increased flow during wet weather events resulting from inflow and infiltration (I/I). These flows may bring their incoming influent over the permitted flow of 100,000 gallons per day (monthly average). The Monitoring and Reporting Program R3-2022-0025 attached to this notice of applicability will require a work plan submittal and annual report submittal to address the I/I defects resulting in increased flow.

The facility currently has four working irrigation sprinklers of the 48 originally installed.

Staff have indicated that the other sprinklers have broken pipes or sprinkler heads.

MRP R3-2022-0025 requires submittal of a Spray Irrigation Disposal Work Plan to address repairs that need to be made.

3. WASTEWATER SYSTEM SPECIFIC REQUIREMENTS AND LIMITATIONS

USAG must operate the facility in accordance with the General Permit5 and this notice of applicability6. USAG must operate the facility system to comply with the effluent limits below.

A. Effluent limits

USAG must comply with the site-specific limits listed in Table 3.

5 General Permit sections B.2, B.3, B.4,and B.6 are not applicable for this facility.

6 General Permit section B.1.b. states that treatment and disposal of wastewater must demonstrate best practicable treatment or control for wastewater, which shall be demonstrated by compliance with the General Permit, effluent limits in the General Permit, and compliance with site-specific limits set forth in this notice of applicability.

Table 3. Wastewater Effluent Limits

Constituent Unit Limit Point of Compliance

Sample Location1

Flow gpd 100,000 (monthly mean) Influent IS-1

Five-Day Biochemical

Oxygen Demand

(BOD5)

mg/L 90 (monthly average)

Effluent before disposal

ES-1

Total N mg/L 10 mg/L Effluent before disposal

ES-1

1 Refer to the Monitoring and Reporting Program for sampling locations

B. Groundwater Limits

As stated in the General Permit, Section C, the discharge must not pollute groundwater or surface waters, or adversely affect beneficial uses of groundwater or cause an exceedance of Basin Plan water quality objectives. Specifically, USAG must manage the facility to comply with Water Quality Control Plan for the Central Coastal Basin (Basin Plan)7 Section 3.3.4 Objectives for Groundwater, which currently includes:

1) General objectives for taste and odors and radioactivity for all groundwaters.

2) Objectives for municipal/domestic supply including bacteria; and organic chemicals, inorganic chemicals, and radionuclides, which are established at the drinking water Maximum Contaminant Levels (MCLs) as defined in California Code of Regulations, title 22, division 4, chapter 15 2.

3) The Facility does not discharge into a designated groundwater basin, there are no site-specific groundwater basin objectives.

Based on the existing effluent water quality, the Central Coast Water Board does not require additional first-encountered groundwater monitoring wells. If effluent water quality indicates exceedances of the groundwater objectives, the Central Coast Water Board may require installation of additional groundwater monitoring wells in the future.

7 Current edition, June 2019 is available at:

https://www.waterboards.ca.gov/centralcoast/publications_forms/publications/basin_pla n/docs/2019_basin_plan_r3_complete.pdf https://www.waterboards.ca.gov/centralcoast/publications_forms/publications/basin_plan/docs/2019_basin_plan_r3_complete.pdf https://www.waterboards.ca.gov/centralcoast/publications_forms/publications/basin_plan/docs/2019_basin_plan_r3_complete.pdf

ATTACHMENT 2

FIGURES

Figure 1. Site Location Map, Google Earth 2021

Facility

Wastewater Treatment Plant

Spray Irrigation Disposal Site

N

Fort Hunter Liggett Attachment 2 March 21, 2022

Figure 2. Process Flow Diagram

CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD

CENTRAL COAST REGION

MONITORING AND REPORTING PROGRAM NO. R3-2022-0025

for United States Army Garrison Fort Hunter Liggett

MONTEREY COUNTY

This Monitoring and Reporting Program (MRP) describes requirements for monitoring a wastewater treatment system for United States Army Garrison (USAG) Fort Hunter Liggett.

USAG owns and operates the wastewater system that is subject to the notice of applicability dated March 21, 2022, for coverage in Order WQ 2014-0153-DWQ, General Waste Discharge Requirements for Small Domestic Wastewater Treatment Systems (General Permit).

1. SAMPLING AND ANALYSIS

All samples must be representative of the volume and nature of the discharge or matrix of materials sampled. The name of the sampler, sample type (grab or composite), time, date, location, bottle type, and any preservative used for each sample shall be recorded on the sample chain of custody form. The chain of custody form must also contain all custody information including date, time, and to whom the samples were relinquished. If composite samples are collected, the basis for sampling (time or flow weighted) shall be approved by the Central Coast Regional Water Quality Control Board (Central Coast Water Board). Unless otherwise specified below, sampling shall be performed as shown in Table 1.

Table 1. Sampling and Monitoring Schedule Monitoring Period Sample Collection Months

Annually October Semiannually April and October

Quarterly January, April, July, and October Monthly Each month of the year

Laboratories analyzing water samples (wastewater and groundwater) must be accredited by the State Water Resources Control Board (State Water Board) Environmental Laboratory Accreditation program, in accordance with California Water Code Section 13176, and must include quality assurance/quality control data with their reports. Field test instruments (such as those to test pH, dissolved oxygen, and

Fort Hunter Liggett MRP March 21, 2022 electrical conductivity) may be used provided that they are used by a State Water Board Environmental Laboratory Accreditation Program certified laboratory, or:

1. The user is trained in proper use and maintenance of the instruments;

2. The instruments are field calibrated prior to monitoring events at the frequency recommended by the manufacturer;

3. Instruments are serviced and/or calibrated by the manufacturer at the recommended frequency; and

4. Field calibration reports are maintained and available for at least three years.

2. WATER SUPPLY MONITORING

Representative samples of the water supply must be collected and analyzed as shown in Table 2 from the production wells prior to any disinfection.

In lieu of the required water supply sampling, USAG may request approval to submit a Well Identification Number and the reporting year’s consumer confidence report (annual water quality report or drinking water quality report), as required by the State Water Board Division of Drinking Water and/or county. USAG must report the results of any constituent monitored more frequently than is required by the monitoring program.

USAG must also report detectable concentrations (above the reporting limit) for any other constituent that has a published maximum contaminant level (MCL).

Table 2. Water Supply Monitoring Parameter Units Type of Sample Sampling

Frequency Reporting Frequency

TDS mg/L1 Grab Annually Annually Nitrate and Nitrite (as N) mg/L Grab Annually Annually

Chloride mg/L Grab Annually Annually Sodium mg/L Grab Annually Annually Boron mg/L Grab Annually Annually Sulfate mg/L Grab Annually Annually

Carbonate mg/L Grab Annually Annually Bicarbonate mg/L Grab Annually Annually

Calcium mg/L Grab Annually Annually Potassium mg/L Grab Annually Annually Magnesium mg/L Grab Annually Annually

1 mg/L denotes milligram per liter

3. MONITORING LOCATIONS

Monitoring location information, including nomenclature that shall be used when reporting data to the GeoTracker database (described below), is shown in Table 3.

Table 3. Monitoring Locations Sample Title GeoTracker Field

Point Code Sample Description

Influent Sample – 1 IS-1 Representative grab sample from influent distribution box after screening before lagoons Effluent Sample – 1 ES-1 Representative grab sample from online lagoon effluent weir before disposal Monitoring Well - 1 MW-1 Representative grab sample from monitoring well 1 Monitoring Well - 2 MW-2 Representative grab sample from monitoring well 2 Monitoring Well - 3 MW-3 Representative grab sample from monitoring well 3

Figure 1. Process Flow Diagram with Sampling Locations

4. POND SYSTEM MONITORING

A. Flow Monitoring

USAG must monitor and report flow, as described in Table 4, with each monitoring report. Flow is monitored at via Parshall flume/ultrasonic flow meter at the headworks.

Table 4. Flow Monitoring Parameter Units Sample Type Frequency

Daily Influent Flow gpd1 Metered Daily

Parameter Units Sample Type Frequency Maximum Daily Influent Flow gpd Metered Monthly

Mean Daily Influent Flow gpd Calculated Monthly 1 gpd denotes gallons per day

B. Influent and Effluent Constituent Monitoring Representative samples of USAG’s influent (raw wastewater) into the wastewater system and effluent (treated wastewater) discharged to land must be collected and analyzed as described in Table 5. Effluent samples shall only be collected in months and at times when spray disposal is occurring. All samples must be grab.

Table 5. Influent and Effluent Monitoring

Parameter/ Constituent Units INFLUENT (IS-1) Sampling Frequency

EFFLUENT (ES-1)

Sampling Frequency

Biochemical Oxygen Demand, 5-Day mg/L1 Monthly Monthly

Total Suspended Solids mg/L Monthly Monthly pH pH units Monthly Monthly

Total Nitrogen mg/L Quarterly Monthly

Nitrate (as N) mg/L Quarterly Monthly Total Kjeldahl Nitrogen (as N) mg/L Quarterly Monthly

Total Dissolved Solids mg/L Not Required Semi-annually

Chloride mg/L Not Required Semi-annually

Sodium mg/L Not Required Semi-annually

Sulfate mg/L Not Required Semi-annually 1 mg/L denotes milligram per liter

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C. Wastewater Pond Monitoring

All wastewater ponds and storage ponds must be monitored consistent with Table 6. USAG must inspect the ponds weekly and notations must be made in a bound logbook and include “observations” of the items in Table 6. Any problems must be promptly corrected and recorded. The bound logbook of these observations must be maintained onsite and made available to the Central Coast Water Board upon inspection. Only violations and mitigation measures must be included in the subsequent monitoring report.

Table 6. Wastewater Pond Monitoring

Parameter Units Sample Type Sample Frequency Dissolved Oxygen mg/L1 Grab2 Weekly pH Std. units Grab2 Weekly Evaporation Inches Weather station3 Daily Freeboard 0.1 feet Measurement Daily

Odors -- Observation Weekly Berm Condition -- Observation Weekly Plant Growth -- Observation Weekly

Vectors or Animals Burrowing

-- Observation Weekly

Disposal Area Condition -- Observation Weekly 1 mg/L denotes milligrams per liter 2 Grab samples can be collected via handheld probe, see section 1 of this MRP 3 Weather station may be site-specific station, onsite evaporation pan, or nearby governmental weather reporting station

5. LAND APPLICATION AREA MONITORING

USAG shall monitor the Spray Irrigation Disposal Site when wastewater irrigation is applied. If wastewater irrigation is not applied during a reporting period, the monitoring report shall so state. Precipitation, windspeed and direction shall be recorded regardless if wastewater irrigation is currently being applied. Spray Irrigation Disposal Site monitoring shall include the following:

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Table 7. Land Application Area Monitoring Parameter Units Sample Type Sample Frequency

Daily Effluent Flow gpd1 Metered/Estimated2 Semiannually Total Flow gallons Calculated Monthly

Acreage Applied3 Acres Calculated Monthly Application Rate gal/acres/mo Calculated Monthly

Local Rainfall Inches Weather Station4 Each Precipitation Event

Wind Speed & Direction mph5 Weather Station Daily Irrigation Equipment -- Observations6 Weekly

Nuisance Odor Condition -- Observations Weekly Saturated Soil/Ponding -- Observations Weekly

Plant Growth -- Observations Weekly Vectors or Animals

Burrowing -- Observations Weekly

Evidence of Soil Erosion -- Observations Weekly 1 gpd denotes gallons per day 2 Effluent flow can be determined via meter reading, or estimated with pump time meter calculations.

3 Acreage applied denotes the acreage to which wastewater is applied 4 Weather station may be site-specific station, onsite gauge, or nearby governmental weather reporting station.

5 mph denotes miles per hour 6 Observations must be maintained onsite in a bound logbook and made available to the Central Coast Water Board upon inspection. Any problems must be promptly corrected and recorded.

6. SOLIDS DISPOSAL MONITORING

USAG must report the handling and disposal of all solids (e.g., screenings, grit, sludge, biosolids, grease, etc.) generated at the wastewater treatment system. Records must include the name/contact information for the hauling company, the type and amount of waste transported, the date removed from the wastewater system, the disposal facility name and address, and copies of analytical data required by the entity accepting the waste. These records must be submitted as part of the subsequent monitoring report.

7. GROUNDWATER MONITORING

Prior to any sampling, depth to groundwater must be measured and groundwater elevations must be calculated. The monitoring wells must be purged of at least three well volumes and until the measurements of the following parameters have stabilized (i.e., are reproducible with 10 percent): pH, temperature, dissolved oxygen, electrical

- 7 -conductivity, and turbidity. No-purge, low flow, or other sampling techniques are acceptable if they are described in the Central Coast Water Board approved sampling and analysis plan. Once the groundwater level in each of the wells has recovered sufficiently to ensure the collection of a representative groundwater samples, a qualified individual (e.g., consultant, technician, etc.) trained in using proper sampling methods shall recover samples using approved USEPA methods. All data must be recorded and submitted in monitoring well field sheets.

USAG shall monitor all three groundwater monitoring wells surrounding the treatment lagoons as follows:

Table 8. Groundwater Monitoring Parameter Units Sample Type Sample Frequency

Depth to Groundwater 0.01 feet Measurement Quarterly Groundwater Elevation 0.01 feet Calculated Quarterly

Gradient 0.01 feet Calculated Quarterly Gradient Direction degrees Calculated Quarterly pH Std. Units Grab Quarterly Total dissolved Solids mg/L1 Grab Quarterly

Nitrate as (N) mg/L Grab Quarterly Sodium mg/L Grab Quarterly Chloride mg/L Grab Quarterly Sulfate mg/L Grab Quarterly Boron mg/L Grab Quarterly

1 mg/L denotes milligrams per liter

8. INFLOW AND INFILTRATION (I/I) REDUCTION

USAG must report ongoing efforts to reduce I/I annually. Information should include at minimum the following:

a. Continued monitoring and reporting on precipitation events and their correlation to increased flows received at the wastewater treatment plant.

b. Ongoing investigations and identification of any other sources contributing to I/I.

c. Manhole repair/replacement activities conducted during the previous year.

d. Sewer pipe repair/replacement work conducted during the previous year

e. A working plan for the upcoming years activities.

f. Maps of defects addressed in the previous year and those that the USAG will be addressing the following year.

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9. REPORTING

The semiannual monitoring reports must be submitted in accordance with Table 9.

Table 9. Semiannual Monitoring Reports Report Monitoring Period Report Due Date

First Semiannual Report January 1 to June 30 August 1 Second Semiannual Report July 1 to December 31 February 1

At a minimum, the semiannual reports must include:

• Facility Information and Description -- Briefly describe your facility, treatment process, and disposal process with references to figures.

• Data Tables -- Tabular summaries of all monitoring data (water supply, influent, effluent, and groundwater) compared to effluent limits, as appropriate. Submit the results of any pollutant or parameter monitored more frequently than is required by this monitoring program.

• Compliance and Performance Discussion -- Disclosure of any noncompliance (violations) with of the notice of applicability and/or General Permit requirements, including a description, it’s cause, the exact date(s) and time(s), and the steps taken or planned to reduce, eliminate and prevent recurrence of the noncompliance.

An evaluation (graphs recommended) of the treatment facilities’ performance, including percent removal of the main pollutants (BOD5, TSS, Total Nitrogen, Total Coliforms) over time, nuisance conditions, system problems, etc.

A discussion of any data gaps and potential deficiencies in the monitoring system or reporting program.

• Disposal Area Inspection -- Report the results of the disposal area inspections, as described in Section 6.

• Solids Disposal -- If solids are disposed of offsite, comply with the reporting in Section 7.

• Operator Information -- List the name and contact information for the wastewater operators responsible for operation, maintenance, and/or system monitoring.

• Flow Evaluation -- A summary in tabular format of the maximum and average flows for each month and comparison to permitted flows.

• Figures -- A wastewater treatment process flow diagram with a label for the monitoring locations and a scaled facility map showing the treatment system, discharge points, and wells (supply and groundwater, if present).

• Laboratory Sheets -- Copies of laboratory analytical report(s) and chain of custody form(s).

• Inflow and Infiltration – Annually, (in the first semi-annual report), report ongoing efforts and progress to reduce I/I annually as described above.

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A. Electronic Submittal All monitoring reports must be provided electronically in a searchable PDF format, with the Central Coast Water Board’s current transmittal sheet found at the link below as the cover page. The transmittal sheet must be signed.

https://www.waterboards.ca.gov/centralcoast/water_issues/programs/wastewater_permi tting/docs/transmittal_sheet.pdf

USAG must submit all reports/documents and laboratory analytical data (influent, effluent, groundwater data) to the State Water Board’s GeoTracker8,9 database, using specific global identification number WDR100037150, consistent with applicable Electronic Submittal of Information (ESI) requirements under a Wastewater System-specific global identification number over the internet at:

http://www.waterboards.ca.gov/ust/electronic_submittal/index.shtml.

Table 10 summarizes the GeoTracker electronic reporting requirements. For general questions, please contact the GeoTracker Help Desk: Geotracker@waterboards.ca.gov.

Table 10. GeoTracker Electronic Submittal Information (ESI) Data Requirements Electronic Submittal Description of Action Action Frequency

Reports and Documents

Complete copy of all documents including monitoring reports (in searchable PDF format) and any other associated documents related to the

Wastewater System.

Upload directly to GeoTracker all monitoring reports (in searchable PDF format) and any other associated documents.

On or before the due dates required by this General Permit and for other documents when required by the Central Coast Water Board.

Laboratory Data

All analytical data (including geochemical data) in electronic deliverable format (EDF).

This includes all water, soil, and vapor samples collected when monitoring a discharge.

Upload, or direct your State Certified

Laboratory staff to upload, all laboratory data directly to GeoTracker.

On or before the due date of the required monitoring report

8 Information for first-time GeoTracker users is available at:

9 Additional information available at:

https://geotracker.waterboards.ca.gov/ https://www.waterboards.ca.gov/centralcoast/water_issues/programs/wastewater_permitting/docs/transmittal_sheet.pdf https://www.waterboards.ca.gov/centralcoast/water_issues/programs/wastewater_permitting/docs/transmittal_sheet.pdf http://www.waterboards.ca.gov/ust/electronic_submittal/index.shtml mailto:Geotracker@waterboards.ca.gov https://geotracker.waterboards.ca.gov/

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Electronic Submittal Description of Action Action Frequency

Depth to Groundwater

Monitoring wells must have the depth-to-water information reported.

Report data only for wells defined as permanent sampling points.

Upload depth-to-water information to the

GeoTracker GEO_WELL file.

On or before the due date of the required monitoring report

Boring Logs and Well Screen

Intervals

Boring logs must be prepared by a registered professional and submitted in PDF format separately (not only as attachments to reports)

Upload boring logs (in searchable PDF format) to GeoTracker whenever a new boring is drilled.

Every time a new boring is drilled.

Location data (Geo XY)

Name, classify, and identify the location

(latitude and longitude) of all sampling points.

Monitoring wells must be surveyed, influent and effluent sample locations must be identified on the GeoTracker mapping tool under “non-surveyed data.”

Upload the location data (surveyed and non-surveyed) to the GeoTracker Geo_XY file.

These data points are required prior to laboratory data uploads. Must be added every time a permanent monitoring point is established.

Elevation Data (Geo Z)

Mark the elevation at the top of groundwater well casings for all permanent groundwater wells. These points are required prior to depth-to-water data uploads.

Upload the survey data to the

GeoTracker GEO_Z File.

One-time, for all groundwater monitoring wells.

Geo Map

Site layout, map of facilities, wastewater treatment system, and disposal area(s).

Upload the Site layout PDF to the

GeoTracker site plan file.

One time, or when the facility is modified.

10. TECHNICAL REPORTS

USAG must submit to GeoTracker the three reports described in General Permit Section E. 1. Technical Report Preparation Requirements by the dates included in Table 11. If this information is already contained in an Operation and Maintenance Manual or similar document, that may be submitted in compliance with this requirement.

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Table 11. Technical Report Submittal Due Dates Report Report Due Date

Spill Prevention & Emergency Response Plan 90 days from date of General Permit enrollment1

Sampling and Analysis Plan 90 days from date of General Permit enrollment1

Sludge Management Plan 90 days from date of General Permit enrollment1

I/I Reduction Work Plan 6 months from date of General Permit enrollment1

Irrigation Spray Disposal Repair Work Plan 6 months from date of General Permit enrollment1

1. The date of General Permit enrollment is March 21, 2022

In addition to the technical reports required in section E.1. of the General Permit, USAG must develop the following technical reports:

A. Infiltration and Inflow (I/I) Reduction Work Plan USAG will develop a onetime technical work plan report to address their current I/I issues that result in increased flow and potential violations. This report should provide information demonstrating that the USAG is producing measurable and successful efforts to reduce I/I. The work plan, at a minimum, must contain the following:

1. A narrative description of the work performed to date to reduce I/I.

2. A current map of sanitary sewer collection system defects in need of repair.

3. A list of repairs/defects to be addressed

4. A timeline to repair/install a new influent flow meter.

5. A costs analysis projection for work to be completed.

6. A proposed timeline to repair/replace sanitary sewer collection system defects.

B. Spray Irrigation Disposal Site Repair Work Plan USAG will develop a onetime technical work plan report to address their current spray irrigation disposal system broken pipes and sprinklers. This report should provide information demonstrating that USAG is producing measurable and successful efforts to repair and replace broken irrigation pipelines and sprinkler heads to ensure that the facility is land applying treated wastewater effluent as originally designed and in compliance with appropriate land application requirements of the General Permit. The work plan, at a minimum, must contain the following:

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1. A narrative description of the current status of the spray irrigation disposal system.

2. A map of the current irrigation piping layout with noted defects.

3. A list of piping and sprinkler defects.

4. Establishment of a preventative maintenance program to provide ongoing repair work and planned replacements during the remaining useful life of the disposal system.

5. A costs analysis projection for work to be completed.

6. A proposed timeline to repair/replace irrigation piping and sprinkler defects.

11. LEGAL REQUIREMENTS

All technical and monitoring reports submitted pursuant to this Monitoring and Reporting Program are required pursuant to section 13267 of the California Water Code. Failure to submit reports in accordance with schedules established by this General Permit or attachments to this General Permit, or failure to submit a report of sufficient technical quality to be acceptable to the Central Coast Water Board, may subject USAG to enforcement action pursuant to section 13268 of the California Water Code.

Water Code section 13267 states, in part:

“In conducting an investigation specified in subdivision (a), the regional board may require that any person who has discharged, discharges, or is suspected of having discharged or discharging, or who proposes to discharge waste within its region, or any citizen or domiciliary, or political agency or entity of this state who has discharged, discharges, or is suspected of having discharged or discharging, or who proposes to discharge, waste outside of its region that could affect the quality of waters within its region shall furnish, under penalty of perjury, technical or monitoring program reports which the regional board requires. The burden, including costs, of these reports shall bear a reasonable relationship to the need for the report and the benefits to be obtained from the reports. In requiring those reports, the regional board shall provide the person with a written explanation with regard to the need for the reports, and shall identify the evidence that supports requiring that person to provide the reports.”

Water Code section 13268 states, in part:

“(a) Any person failing or refusing to furnish technical or monitoring program reports as required by subdivision (b) of section 13267, or failing or refusing to furnish a statement of compliance as required by subdivision (b) of section 13399.2, or falsifying any information provided therein, is guilty of a misdemeanor and may be liable civilly in accordance with subdivision (b).

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(b)(1) Civil liability may be administratively imposed by a regional board in accordance with article 2.5 (commencing with section 13323) of chapter 5 for a violation of subdivision (a) in an amount which shall not exceed one thousand dollars ($1,000) for each day in which the violation occurs.

The burden and cost of preparing the reports is reasonable and consistent with the interest of the state in maintaining water quality. The reports are necessary to ensure that USAG complies with the notice of applicability and General Permit. Pursuant to Water Code section 13267, USAG must implement this MRP and must submit the monitoring reports described herein.

USAG must implement the above monitoring program as of the date of this MRP. The Central Coast Water Board may rescind or modify the MRP at any time.

Ordered by:

for Matthew T. Keeling Executive Officer