ATTACHMENT A
MONITORING AND REPORTING PROGRAM
FOR
General Waste Discharge Requirements
For Discharges OF WINERY WASTE to Land
Within The San Francisco Bay region
ORDER NO. R2-2017-XXXX
CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD
SAN FRANCISCO BAY REGION
TABLE OF CONTENTS
I. PURPOSE 3
A. General 3
B. Applicability 3
C. Program Framework 4
II. SAMPLING and ANALYTICAL METHODS 4
III. DEFINITION of TERMS 5
A. Types of Samples 5
B. Sampling Frequency 6
C. Sampling Periods 6
D. Abbreviations 7
E. Statistical Parameters 7
F. Description of Monitoring Stations 7
G. Loading Calculations 8
IV. MONITORING REQUIREMENTS 9
A. Standard Observations 9
B. Wine Production Monitoring – All Tiers 10
C. Land Application Monitoring – All Tiers 10
D. Septic Tank Monitoring – All Tiers 11
E. Subsurface Dispersal System (Leachfield) Monitoring – All Tiers 12
F. Wastewater Flow Monitoring – All Tiers 13
G. Effluent Quality Monitoring 14
H. Pond Monitoring – All Tiers 19
I. Solids Disposal Monitoring – All Tiers 21
J. Chemical Use Monitoring – All Tiers 21
K. Groundwater Monitoring 21
V. REPORTING REQUIREMENTS 23
A. Modification of Monitoring Practices 23
B. Monitoring Reports 23
B. Reports of Violations 26
VI. MONITORING PROGRAM CERTIFICATION 27
LIST OF TABLES
Table 1: Wine Production Monitoring Requirements 10
Table 2: Land Application Monitoring Requirements 11
Table 3: Septic Tank Monitoring 11
Table 4: Subsurface Discharge Monitoring 13
Table 5: Flow Monitoring Requirements 13
Table 6: Storage Systems Monitoring 14
Table 7: Tier 1 Effluent Monitoring Requirements 15
Table 8: Tiers 2 and 3 Effluent Monitoring Requirements – Subsurface Discharge 16
Table 9: Tiers 2 and 3 Effluent Monitoring Requirements – Land Surface Discharge 17
Table 10: Concentration Conversions from mg/L to meq/L 19
Table 11: Pond Monitoring Requirements 20
Table 12: Groundwater Monitoring Requirements 22
I. PURPOSE
A. General
1. This Monitoring and Reporting Program (Monitoring Program) is for waste discharge requirements adopted by the California Regional Water Quality Control Board, San Francisco Bay Region (Regional Water Board), as Board Order No. R2-2017-XXX, General Waste Discharge Requirements for Discharges of Winery Waste to Land within the San Francisco Bay Region (Winery Order or Order).
2. The principle purposes of a monitoring program by a waste discharger (Discharger) are:
a. To document compliance with waste discharge requirements and prohibitions established by the Regional Water Board; and
b. To facilitate accountability and selfmonitoring by the Discharger in the prevention and abatement of pollution or potential threats to water quality arising from waste discharges.
3. Reporting responsibilities of waste dischargers are specified in Sections 13225(a), 13267(b), 13268, 13383, and 13387(b) of the California Water Code (Water Code) and this Regional Water Board's Resolution No. 7316.
4. The Order authorizes discharges of winery waste to land under specified conditions and subject to specified requirements. In order to ensure compliance with those requirements, Dischargers are required to conduct monitoring of the discharges and submit reports of monitoring results on a regular basis to the Regional Water Board. The Discharger is responsible for compliance with the monitoring and reporting requirements specified in this Monitoring Program.
5. As counties, water agencies, or locally-controlled groundwater sustainability agencies develop groundwater management measures such as Salt and Nutrient Management Plans, groundwater quality monitoring or loading limitations may be recommended. Through this effort, interagency collaboration will be necessary and additional or modifications to effluent or groundwater monitoring may be recommended. If new information or evidence indicates that effluent limitations or monitoring requirements are different than those prescribed herein are appropriate, the Order and the Monitoring Program will be revised to incorporate such monitoring requirements or limits.
6. All monitoring and analysis instruments and devices used by the Discharger to fulfill the prescribed Monitoring Program shall be properly maintained and calibrated as recommended by the manufacturer to ensure their continued accuracy.
B. Applicability
1. This Monitoring Program applies to the wastewater system and associated discharges of waste to land described in the Notice of Intent Package submitted for the Discharger's coverage under the Order, and authorized in the Discharge Authorization Letter for those discharges.
2. The Discharger is subject to, and responsible for implementation of, all applicable requirements of this Monitoring Program beginning 45 calendar days after the date of the Discharge Authorization Letter.
3. Dischargers regulated under the Order shall conduct monitoring and reporting in accordance with the requirements given in this Monitoring Program, unless such requirements are modified by the Executive Officer. The monitoring requirements in this Monitoring Program are minimum requirements. Additional requirements may be added by the Executive Officer as needed to adequately assure compliance with the Order and proper wastewater system performance.
4. All discharges of waste to land must be monitored by observations and measurements sufficient to adequately characterize the location, quantity, and quality of the discharges. Wastewater sources and treatment systems also must be monitored in order to verify that adequate and reliable treatment and management of the wastewater is being provided.
C. Program Framework
In order to prevent and/or address the potential impacts to beneficial uses associated with winery wastewater discharges to land, this Order regulates the discharge of winery wastewater to land via an approach based on discharge quantity, land disposal method(s), the location of winery in proximity to impacted groundwater areas, and the availability of an authorized county oversight program. Any Discharger that discharges winery wastewater to land in the San Francisco Bay region will fall into one of three tiers. Refer to the Program Framework section in the Findings of the Order for additional information on the tiers, which include the following:
Tier 1: Dischargers discharging less than 1,500 gallons per day (gpd) monthly average of winery waste during crush season and 1,500 gpd daily maximum during non-crush season.
Tier 2: All other Dischargers discharging greater than a monthly average of 1,500 gpd, except for those in Tier 3.
Tier 3: Dischargers with facilities located in a County that is authorized as program administrator, pursuant to a county oversight program that has been approved by the Regional Water Board Executive Officer.
II. SAMPLING and ANALYTICAL METHODS
1. Sample collection, storage, and analyses shall be performed according to Code of Federal Regulations Title 40, Section 136 (40 CFR §136), or other methods approved and specified by the Executive Officer of the Regional Water Board.
2. Water and waste analyses shall be performed by a laboratory approved for these analyses by the State Water Resources Control Board Division of Drinking Water (DDW), or a laboratory waived by the Executive Officer from obtaining a DDW certification for these analyses. If a certified laboratory is not available to the Discharger, analyses performed by a noncertified laboratory will be accepted provided the laboratory and Discharger implement a Quality Assurance/Quality Control Program that conforms to U.S. EPA guidelines.
3. The director of the laboratory whose name appears on the certification, or his/her laboratory supervisor who is directly responsible for the analytical work performed shall supervise all analytical work, including appropriate quality assurance/quality control procedures in his/her laboratory and shall sign all reports of analytical results.
4. All monitoring instruments and equipment shall be properly calibrated and maintained to ensure accuracy of measurements.
5. Samples and measurements taken for the purpose of monitoring shall be representative of the monitored activity.
III. DEFINITION of TERMS
The following definitions and descriptions of terms apply to the requirements of this Monitoring Program.
A. Types of Samples
1. Flow measurement. Flow measurement is the accurate measurement of the flow volume over a given period of time using a properly calibrated and maintained flow measuring device. Flows calculated from properly maintained pump use records or device, such as a pump dose event counter, for an accurately calibrated pump are acceptable. Flows shall be monitored continuously, and reported as total flow volume for the identified monitoring period.
2. Grab Sample. A grab sample is defined as an individual sample collected in a short period of time not exceeding 15 minutes. Grab samples are used primarily in determining compliance with daily or instantaneous maximum or minimum limits, and for bacteriological limits. Grab samples represent only the condition that exists at the time the sample is collected.
3. Composite Sample. A composite sample is a sample composed of multiple individual grab samples collected at regular intervals throughout a given period of time. The composite sample consists of the individual grab samples mixed in proportion to the instantaneous wastewater flow rate at the time of each respective grab sample. Sample proportioning shall not vary by more than five percent of the flow rate. Typical composite sampling uses grab sample intervals of one hour and a sampling period of 24 hours. Sampling periods of less than 24 hours are acceptable, with justification, such as for characterizing waste flows during an 8-hour work cycle.
4. Freeboard. Freeboard is the vertical distance between the water surface of contained water (e.g., pond water) and the lowest elevation of the top of the water containment structure (e.g., pond berm).
5. Ground water levels. Ground water level is the vertical distance between the water surface of observed ground water and the overlying ground surface.
6. Ground water samples. Ground water samples are samples of ground water obtained from monitoring wells for analytical characterization. Sampling of ground water shall be conducted in accordance with current accepted standard practices for ground water sampling, sample handling, and analyses.
7. Observations. Observations are primarily visual observations and inspection of conditions. Observations may include recording measurements from monitoring devices such as freeboard determined from a water level staff gauge or precipitation determined from a rain gauge.
B. Sampling Frequency
Continuous = Continuous monitoring, for the full duration of the monitored event.
Daily = One time each calendar day.
Weekly = One time per calendar week, with sampling intervals of about seven days.
Biweekly = Two times per calendar month, with sampling intervals of about fourteen days.
Monthly = One time per calendar month, with sampling intervals of about four weeks.
Quarterly = One time per calendar quarter, with sampling intervals of about three months.
Annually = One time per calendar year, with sampling intervals of about twelve months.
C. Sampling Periods
1. Dry Season and Wet Season.
a. Dry Season. The Dry Season is the period during which weather is characterized by little precipitation, ground conditions are generally dry, and ground water levels typically decrease. For purposes of this Monitoring Program, unless specified otherwise, the Dry Season is the six-month period of May through October.
b. Wet Season. The Wet Season is the period during which most of the annual precipitation occurs, and ground conditions are typically wet and ground water levels typically increase. For purposes of this Monitoring Program, unless specified otherwise, the Wet Season is the six-month period of November through April.
2. Crush Season. For purposes of this Monitoring Program, the wine grape crush season (also called "crush") is the period during which wine grape crush activity occurs, extending from the date of the first delivery of grapes to the Discharger's facility, through at least seven days after the date of completion of all grape crushing activity and associated clean-up, dismantling and storage of all grape crushing equipment. In general, the crush season typically occurs between late August and December.
D. Abbreviations
1. Sample Types
Flow = Flow Measurement
Grab = Grab Sample
2. Monitoring Parameters
BOD5 = Biochemical Oxygen Demand, 5-day, at 20 oC
TSS = Total Suspended Solids
TDS = Total Dissolved Solids
N = Nitrogen
NO3-N = Nitrate as nitrogen
NH4+ = Ammonium
3. Units
gpd = gallons per day
mg/L = milligrams per liter
ml/L-hr = milliliters per liter, per hour
E. Statistical Parameters
1. Average. Average is the arithmetic mean (i.e., the sum of all values in a given data set, divided by the total number of values). A monthly average is the sum of the test result values from all samples collected in the month, divided by the number of samples.
F. Description of Monitoring Stations
1. Monitoring Station Definitions. Stations to be used for sampling and observations in accordance with this Monitoring Program shall be described in each monitoring report submitted in response to this Monitoring Program. The station description shall include a description of the water, wastewater, point of the wastewater system, or land area where specified monitoring is to be conducted.
2. Monitoring Station Changes. Changes to the monitoring stations defined in this Monitoring Program may be authorized by the Executive Officer in order to accommodate changes in the wastewater system or wastewater system operations or to provide improved monitoring. Requests for changes to the monitoring stations must be submitted to the Regional Water Board in writing, with a detailed explanation of the purpose of the proposed station changes. Proposed changes to monitoring stations must be approved in writing from the Executive Officer prior to implementation.
3. Site Plan Showing All Monitoring Stations. The Discharger shall develop a scaled and legible plan view drawing of the facility site that clearly shows the locations of all major components of the wastewater system, all monitoring stations identified in this Monitoring Program, and relevant land use features such as buildings, access roads, property boundaries, and surface water drainage systems. A copy of this drawing shall be included with all reports submitted in response to this Monitoring Program.
G. Loading Calculations
1. The mass of biochemical oxygen demand applied to the discharge areas on a daily basis over the duration of the cycle period, shall be calculated using the following formula:
M=8.345 × (C×V)A×t
Where:
M = mass of BOD applied to an discharge area in pounds/acre/day (lbs/acre/day)
C = concentration of BOD in milligrams per liter (mg/L) based on most recent monitoring result
V = volume of wastewater applied to the discharge area in millions of gallons
A = area of the discharge area irrigated in acres