Surface Water Monitoring Plan (SWMP) As Required Under the Regional Board Order No
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Kern River Watershed Coalition Authority Surface Water Monitoring Plan Kern County, California • February 2015 Prepared for: Prepared by: Kern River Watershed Coalition Authority Surface Water Monitoring Plan Revision 1 Kern County, California Initial Submittal: August 4, 2014 Resubmittal: February 2, 2015 Prepared for: Kern River Watershed Coalition Authority Kern County, California Prepared by: Provost & Pritchard Consulting Group Bakersfield, California COPYRIGHT 2015 by PROVOST & PRITCHARD CONSULTING GROUP ALL RIGHTS RESERVED Provost & Pritchard Consulting Group expressly reserves its common law copyright and other applicable property rights to this document. This document is not to be reproduced, changed, or copied in any form or manner whatsoever, nor are they to be assigned to a third party without first obtaining the written permission and consent of Provost & Pritchard Consulting Group In the event of unauthorized reuse of the information contained herein by a third party, the third party shall hold the firm of Provost & Pritchard Consulting Group harmless, and shall bear the cost of Provost & Pritchard Consulting Group's legal fees associated with defending and enforcing these rights. The Kern River Watershed Coalition Authority (KRWCA) shall have unlimited use of this work product. Certifications This Surface Water Monitoring Plan is signed by the following certified professionals: Provost & Pritchard Consulting Group Project Team This Surface Water Monitoring Plan was prepared by the following project team members: Provost & Pritchard Consulting Group • Matthew Klinchuch, PE • John Schaap, PE • Debora De La Torre, EIT • Gavin O’Leary Table of Contents Executive Summary ....................................................................................................................... ES-1 Third-Party Area Description ............................................................................................................... ES-1 Land Use and Management Practices ................................................................................................. ES-1 Potential Discharges, Pollutants, and Water Quality Problems .......................................................... ES-2 Surface Water Monitoring Plan Overview ........................................................................................... ES-2 Conclusions .......................................................................................................................................... ES-3 1 Introduction ...........................................................................................................................1-1 1.1 Kern River Watershed Coalition Authority Background ........................................................... 1-1 1.1.1 Member Districts .................................................................................................................. 1-1 1.2 Description of Coalition Group Area ........................................................................................ 1-2 1.2.1 Kern River ............................................................................................................................. 1-2 1.2.2 Friant-Kern Canal .................................................................................................................. 1-4 1.2.3 State Water Project .............................................................................................................. 1-5 1.2.4 Groundwater Banking Facilities ........................................................................................... 1-5 1.2.5 Minor Creeks and Streams ................................................................................................... 1-5 1.2.6 Water Conveyance Facilities ................................................................................................ 1-8 1.2.7 Soils ...................................................................................................................................... 1-9 1.2.8 Climate & Hydrology ............................................................................................................ 1-9 1.2.9 Beneficial Uses ................................................................................................................... 1-10 2 Surface Water Quality Status ..................................................................................................2-1 2.1 Current Status ........................................................................................................................... 2-1 2.2 Monitoring Trends .................................................................................................................... 2-2 2.3 Potential Discharges ................................................................................................................. 2-2 2.3.1 Agricultural Drainage ........................................................................................................... 2-2 2.3.2 Storm Water Runoff ............................................................................................................. 2-2 3 Agricultural Management Practices .........................................................................................3-1 3.1 Management Practices Trends in Kern County ........................................................................ 3-1 3.1.1 Water Application Practices ................................................................................................. 3-1 3.1.2 Soil Enhancement and Control ............................................................................................. 3-2 3.1.3 Pesticide Application ............................................................................................................ 3-3 Provost & Pritchard Consulting Group • February 2015 i 3.1.4 Fertilizer Application ............................................................................................................ 3-4 3.2 Management Practices and Land Use ...................................................................................... 3-5 3.3 Future Management Practice Implementation ........................................................................ 3-6 4 Surface Water Monitoring Site Selection & Rationale ...............................................................4-1 4.1 Proposed Monitoring Sites ....................................................................................................... 4-1 4.1.1 Chanac Creek (Core) ............................................................................................................. 4-1 4.1.2 El Paso Creek (Ephemeral) ................................................................................................... 4-2 4.1.3 Tecuya Creek (Ephemeral) ................................................................................................... 4-2 4.1.4 Poso Creek (Core) ................................................................................................................. 4-3 4.2 Monitoring Site Coordination ................................................................................................... 4-3 4.2.1 Cawelo Water District Coalition – Poso Creek ..................................................................... 4-4 4.2.2 Buena Vista Coalition – Main Drain Canal ............................................................................ 4-4 4.3 Rejected Monitoring Sites ........................................................................................................ 4-4 4.3.1 Caliente Creek ...................................................................................................................... 4-4 4.3.2 San Emigdio Creek ................................................................................................................ 4-4 4.3.3 Miscellaneous Small Creeks ................................................................................................. 4-5 4.3.4 Kern River Outlet Canal ........................................................................................................ 4-5 4.3.5 James Canal .......................................................................................................................... 4-5 4.3.6 Connecting Slough ................................................................................................................ 4-5 4.3.7 Friant-Kern Canal .................................................................................................................. 4-5 4.3.8 Conveyance Facilities ........................................................................................................... 4-5 4.4 Selection Rationale Summary ................................................................................................... 4-6 5 Surface Water Monitoring Schedule ........................................................................................5-1 5.1 Assessment Monitoring Schedule ............................................................................................ 5-1 5.2 Ephemeral Monitoring Schedule .............................................................................................. 5-2 5.3 Core Monitoring Schedule ........................................................................................................ 5-2 5.4 Special Monitoring Schedule .................................................................................................... 5-3 5.5 Monitoring Prioritization .........................................................................................................