Water management protects our environment

Effective management of agricultural irrigation runoff and stormwater discharge is important to protect local water quality.


Water Issues

Water Quality Management Plans

VCAILG’s Water Quality Management Plan (WQMP) serves as the roadmap to meet local water quality standards and goals. These plans are prepared and submitted to the Los Angeles Regional Water Quality Control Board (Regional Board) to comply with the Agricultural Conditional Waiver.

Responsibility Areas

The first WQMP under the 2016 waiver requirements was submitted to the Regional Board in April 2017. Substantially different from previous plans, the WQMP divides Ventura County into “Responsibility Areas” according to subwatersheds, drainage areas, crop similarities, and additional total maximum daily load (TMDL) requirements. Each parcel is assigned to one of the 20 Responsibility Areas and each area is associated with one VCAILG water quality testing site – identified as the “Beacon Site” for that specific area. Members are accountable for implementing the correct agricultural BMPs to address any continuing water quality issues found during monitoring at your Responsibility Area’s Beacon Site.

Responsibility Area Compliance Summary

To help our members, VCAILG has created a compliance summary handout for each Responsibility Area that contains all the specific information members need to know to meet waiver requirements.  Each compliance summary includes:

Responsibility Area identification
Beacon Site and continuing water quality issues identification
BMPs Survey participation notice
Required Documentation to be kept on site 
Education requirement notice
Resources information for BMPs assistance if specific funding is available in your area
Required BMPs table (and online resource links)

Responsibility Area By Parcel List

To get started, identify your parcel’s watershed on the maps in the following sections or search the Responsibility Area listing below. (Any parcel located on a border has been assigned to only one Responsibility Area.) Please email us at vcailg@farmbureauvc.com if your parcel is not listed or does not indicate a Responsibility Area.

VCAILG RA Assignments July 2017 VCAILG RA Assignments July 2017 (258 KB)

Print Your Compliance Summary

The next step is to download and print the compliance summary for your Responsibility Area (links below) or contact us and we can email it to you. Please note that each compliance summary includes online links to technical information about how to implement many of the BMPs and why these actions are important to protect water quality.

Calleguas Creek Watershed Responsibility Areas Compliance Summaries

1 Etting-Wood – O4D_ETTG
2 Lower Calleguas Creek - O4D_ETTG
3 South Revolon – 04D_LAS
4 LaVista Drain – 05D_LAVD
5 Mugu Lagoon – 01T_ODD3_ARN
6 Beardsley Wash – 05T_HONDO
7 Arroyo Conejo – 06T_LONG2
8 Arroyo Simi - 06T_LONG2
9 Las Posas - 06T_LONG2
10 Malibu - 05T_HONDO (Proxy monitoring site for Malibu)

Santa Clara River and Oxnard Coastal Watersheds Responsibility Areas Compliance Summaries

Ventura River Watershed Responsibility Areas Compliance Summaries


18 Ventura River Inland – VRT_THACH
19 Ventura River Coastal - VRT_THACH
20 San Antonio Creek - VRT_SANTO

2017 Water Quality Management Plan

All VCAILG members should read (see link below) the most current Water Quality Management Plan. Each Responsibility Area has its own section in the 2017 Water Quality Management which details membership and crop data, BMPs survey results, water quality monitoring exceedances and required BMPs implementation. Since common names were not yet established, the following is the key to each WQMP section:

O4D_ETTG-Revlon Responsibility Area = 1 Etting-Wood
O4D_ETTG-Calleguas Responsibility Area = 2 Lower Calleguas Creek
04D_LAS Responsibility Area = 3 South Revolon
05D_LAVD Responsibility Area = 4 LaVista Drain
01T_ODD3_ARN Responsibility Area = 5 Mugu Lagoon
05T_HONDO Responsibility Area = 6 Beardsley Wash
06T_LONG2-Conejo Responsibility Area = 7 Arroyo Conejo
06T_LONG2-Simi Responsibility Area = 8 Arroyo Simi
06T_LONG2-Las Posas Responsibility Area = 9 Las Posas
05T_HONDO-Malibu Responsibility Area = 10 Malibu
OXD_CENTR Responsibility Area = 11 McGrath Lake Coastal
S04T_TAPO Responsibility Area = 12 Tapo Canyon
S02T_TODD Responsibility Area (13 Todd Barranca)
S02T_ELLS Responsibility Area = 14 Ellsworth Barranca
S03D_BARDS Responsibility Area = 15 Bardsdale 
S03T_BOULD Responsibility Area = 16 Boulder Creek
S03T_TIMB Responsibility Area = 17 Santa Paula Creek
VRT_THACH-Inland Responsibility Area = 18 Ventura River Inland
VRT_THACH-Coastal Responsibility Area = 19 Ventura River Coastal
VRT_SANTO Responsibility Area = 20 San Antonio Creek

2017 Water Quality Management Plan 2017 Water Quality Management Plan (11215 KB)


Page revised August 8, 2017 


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