Salt and Nutrient Management Planning Tools for the Sonoma Valley - - PowerPoint PPT Presentation

Implementing Salt and Nutrient Management Plan for the Sonoma Valley County Sanitation District

Innovative Solutions for Water and the Environment

July 28, 2011

Presenters Christy Kennedy, PE, PG, CHG Dave Richardson, PE November 7, 2013

Salt and Nutrient Management Planning Tools

• Northern California
• Sonoma Valley
• Santa Rosa Plain
• Santa Clara Valley Water District

(outreach support)

• Bay Area IRWMP SNMP Template
• Central Coast
• Paso Robles
• Southern California
• Antelope Valley
• Temecula Valley
• Water Replenishment District of So.

Cal.: Central and West Basins

• Coachella

RMC’s SNMP Experience

SNMP Approach within Several Regions (18-month Process)

Implementation Measures Implementation Measures Integration into Bay Area IRWMP Integration into Bay Area IRWMP Anti-degradation Analysis Anti-degradation Analysis Potential Source Identification Potential Source Identification Land Use Verification Land Use Verification Draft GW Monitoring Plan Draft GW Monitoring Plan RW & Stormwater Goals & Objectives RW & Stormwater Goals & Objectives Assimilative Capacity, Fate & Transport Assimilative Capacity, Fate & Transport Salt & Nutrient Plan Compilation Salt & Nutrient Plan Compilation Final Plan & BAIRWMP Document

Work shop 1 Work shop 2 Work shop 3 Work shop 4 Work shop 6 Work shop 5

Workshop 5 with Bay Area Coordinating committee

Loading Results Loading Results

• Oct. 2012

TAC Apr. BAP

• Jan. 2013

TAC

• Mar. TAC

Jul.2013 BAP Jun.TAC June 2012 TAC

GIS Model – Ties Basin Characteristics to Load Estimates

Related Factors and Attributes

ET Precipitation and Applied Water Demand Runoff Water Demand Recharge/ Storage

Salt Load Nutrient Load

Salt and Nutrient Analysis Platform (SNAP!)

• SNAP enables users to:
• Evaluate loading factors impacting basin loading rates
• Test loading sensitivity of various factors
• Evaluate spatial distribution of loading (real or hypothetical

scenarios)

• BMP evaluation
• Basins management changes
• Data visualization for analysis, QA/QC and outreach

Loading Approach Is Highly Dependent on Land Use

• Agricultural Commodities
• Apartments
• Auto Sales
• Banks
• Burial Property
• City Government Properties
• Clubs/Lodge Halls
• County Government Properties
• Dance Halls (Private)
• Duplexes and Doubles
• Federal Government Properties
• Field Crops
• Food Stores
• Golf Courses (Private)
• Hardwoods and Chaparral
• Homes
• Horse Ranches
• Hospitals (Private)
• Hotels
• Irrigated Dairies
• Irrigated Orchards
• Irrigated Pastures
• Irrigated Poultry Ranches
• Irrigated Vineyards
• Light Manufacturing
• Lumber
• Mfg Home/Trailer Parks
• Mineral Processing
• Miscellaneous Commercial Spaces
• Miscellaneous Industrial
• Motels
• Non-irrigated Vineyards
• Nurseries
• Office Buildings
• Orchards
• Orphanages
• Outdoor Recreational Facilities (Private)

List of Landuse

• Park (Private)
• Park/Other Recreational Facility (City)
• Park/Other Recreational Facility (County)
• Park/Other Recreational Facility (State)
• Parking Lots (Private)
• Pastures
• Processing Plants
• Professional Buildings
• Religious Properties
• Residential Common Areas
• Restaurants and Bars
• Roadways
• Rural Residences
• School District Property
• Schools
• Service Shops
• Service Stations
• Shopping Centers
• Single Family Dwellings
• Special Districts Properties
• Specialty Farms
• State Government Properties
• Store and Office Combinations/Single Story
• Stores
• Theaters
• Three and Four Unit Complexes
• Tidelands
• Transitional Use
• Utilities
• Vacant Commercial Land
• Vacant Industrial Land
• Vacant Residential Land
• Volunteer Fire Departments
• Warehouses
• Wastelands
• Water Sources
• Dairy
• Golf
• Irrigated Agriculture
• Irrigated Vine
• Non-Residential Urban
• Non-irrigated

Agriculture

• Parks and Camps
• Residential
• Rural Residential
• Schools
• Vacant

Commercial/Industrial

• Vacant Residential
• Water

Loading Landuse

• Crop Coefficient
• Irrigation
• Fertilizer/Amendment

(Salts)

• Livestock (Salts)
• Fertilizer/Amendment

(Nutrients)

• Livestock (Nutrients)
• Uptake/Offtake

(Nutrients)

• Other losses (Nutrients)
• Municipal Inputs (Salts)
• Municipal Inputs

(Nutrients) Landuse Factors

GIS Model Structure is Based on Two Primary Data Integration Processes

Land Use Irrigation Requirements Fertilizer/ Amendment Requirements

Nutrient Module Salt Module

Source Water Quality Septic System Data Other Load Data Soil Textures

Salt Load Nutrient Load

Septic Loads Land Use Loads Other Loads (Infrastructure, etc)

Loading Model – Draft Input

Loading Model – Data Input

EXAMPLE Loading Factors

Vines Ranchettes Other CAFOs Urban Residential

Model Issues and Assumptions

• Land Use: How do you capture growth? Cropping changes?
• Groundwater: Is your data representative? Is your data for

the deep aquifer, but private users are tapping shallow?

• Applied Sources: Compare to county sales data, but requires

professional judgment. What is applied and what should be applied are often different.

• CAFOs: Requires understanding of production areas,

application areas, and ponds

Incorporating the Loading

• Loading from the surface is only one component
• Estimate basin concentrations by mass balance with:
• Stream recharge/discharge
• Artificial recharge
• Subsurface groundwater flow
• Leaks
• Seawater intrusion/connate water
• Groundwater model can be help identify flow volumes

Basins lacking Groundwater Data

• GIS can be used with “fuzzed” data locations from CDPH,

GAMA, USGS, other

• Spatial averaging
• 1-bucket approach
• Monitoring Plan!

Challenges/Concerns Across the State

• Lack of data/lack of access to data – confidentiality
• Finger pointing
• Calibration
• Stakeholder participation
• Confusion of how to implement, CEQA or no CEQA?
• Differences in Water Quality Objectives

Key Opportunities with SNMPs

• Utilizing GMP or IRWM Stakeholder network as working

group

• Utilizing relationships with USGS
• Engagement with RWQCBs throughout process
• Get to know your loaders – the best data comes directly

from the source

• Look at first generation of plans, refine goals & objectives

and develop a more standardized approach for Plan development and implementation

• Use the SNMP to promote projects

Questions?

Christy Kennedy: ckennedy@rmcwater.com, 415.321.3400 Dave Richardson: drichardson@rmcwater.com, 925.627.4100