Wellhead Protection Plan
2007 SAJB Wellhead Protection Plan Update (pdf)
- Data Resources Information
- Wellhead Protection Area Delineations
- Public Education/Involvement
- Wellhead Risk Ranking and Assessment
- Contaminant Source Inventory
- Contingency Plan Technical Report
- Management Plan
- 1.1 Background
- 1.2 Regulatory
- 1.2.1 SAJB Water Supply Description
- 1.2.2 Funding Mechanism
- 1.2.3 Wellhead Protection Regulations
- 1.2.4 Susceptibility Assessments
- 1.3 WHP Report Contents
- 1.3.3 Data Resource Information
- 1.3.4 WHP Area Delineation
- 1.3.5 Public Education/Involvement
- 1.3.6 Wellhead Risk Ranking and Assessment
- 1.3.7 Potential Contaminant Source Inventory
- 1.3.8 Contingency Plan Technical Report(s)
- 1.3.9 Management Plan
- 2.1 Introduction
- 2.2 Water Level Monitoring Network
- 2.3 Monitoring Well Installation
- 2.4 Discrete Water Level Monitoring Event
- 2.4.1 Water Levels
- 2.4.2 Pumping
- 2.5 Continuous Water Level Monitoring
- 2.6 Aquifer Testing
- 2.6.1 Aquifer Test Summaries
- 2.6.2 Data Analysis
- 2.7 Spokane Valley Geophysical Investigation
- 2.8 North Spokane Hydrogeologic Evaluation
- 2.8.1 Introduction
- 2.8.2 Microgravity Gradiometry Survey
- 2.8.3 TEM Field Test
- 2.8.4 North Spokane Deep Aquifer Evaluation
- 2.8.5 North Spokane Aquifer Water Quality
- 2.9 Pine River Park Evaluation
- 2.9.1 Data Collection Network
- 2.9.2 Data Evaluation and Capture Zone Analysis
- 3.1 Introduction
- 3.2 Delineation Approach
- 3.3 Delineation Procedures
- 3.3.1Well/well-fields Within Spokane Valley Aquifer
- 3.3.2 Mesh Modification (Well Locations)
- 3.3.3 Other Model Modifications
- 3.3.4 Delineation Results
- 3.4 Calculations of Groundwater Elevations
- 3.4.1 Particle-Tracking Procedure
- 3.4.2 Wells Outside Spokane Valley Aquifer
- 3.5 Delineations of SWHPAs
- 3.5.1 SWHPAs
- 3.5.2 Aquifer-Wide Delineation
- 3.6 Overlap of SWHPAs
- 3.6.1 Causes of Overlaps
- 3.6.2 Notable Overlaps for SAJB Wells/Well-fields
- 3.6.3 Implications for Management Planning
- 4.1 Introduction
- 4.1.1 Public Education and Program Unity
- 4.2 Developing an Identity
- 4.3 Public Presentations
- 4.3.1 Post Office Box
- 4.4 Newsletters
- 4.5 Media
- 4.5.1 News Releases
- 4.5.2 Media Briefings
- 4.6 Expo ’97 and the 1997 Spokane County Fair
- 4.7 Political Meetings
- 4.8 Video
- 4.9 Meeting in a Bag
- 4.10 Other Public Involvement Activities
- 4.11 Web Site
- 4.12 Survey
- 4.13 Public Involvement Implementatio
- 5.1 Introduction
- 5.2 Examples of Risk Scoring Methods
- 5.3 Risk Ranking Criteria – SAJB Method
- 6.1 Introduction
- 6.1.1 Background
- 6.1.2 Contaminant Transport
- 6.2 Sources of Information
- 6.2.1 Spokane County’s Water Quality Management Program
- 6.2.2 Environmental Protection Agency (EPA)
- 6.2.3 Washington State Department Of Ecology (Ecology)
- 6.2.4 County of Spokane Solid Waste Management Drycleaner Survey
- 6.2.5 Washington State Department of Agriculture (WSDA)
- 6.2.6 City of Spokane Fire Department Hazardous Materials List
- 6.2.7 Local Water Purveyors Survey
- 6.2.8 Historical Data
- 6.3 Potential Contaminant Sites within Proposed Wellhead Protection
- Areas
- 6.3.1 Carnhope Irrigation District No. 7
- 6.3.2 Consolidated Irrigation District No. 19
- 6.3.3 East Spokane Water District No. 1
- 6.3.4 Hutchinson Irrigation District No. 16
- 6.3.5 Irvin Water District No. 6
- 6.3.6 Kaiser – Mead
- 6.3.7 Kaiser – Trentwood
- 6.3.8 Liberty Lake Sewer/Water District
- 6.3.9 Town of Millwood
- 6.3.10 Moab Irrigation District No. 20
- 6.3.11 Model Irrigation District No. 18
- 6.3.12 Modern Electric Water Company
- 6.3.13 North Spokane Irrigation District No. 8
- 6.3.14 Orchard Avenue Irrigation District No. 6
- 6.3.15 Pasadena Park Irrigation District No. 17
- 6.3.16 Spokane County Water District No. 3
- 6.3.17 Spokane Industrial Park
- 6.3.18 Trentwood Irrigation District No. 3
- 6.3.19 Vera Water & Power
- 6.3.20 Whitworth Water District No. 2
- 6.4 Delineated Aquifer Wide Protection Area
- 6.5 Notification of Businesses/Facilities within SWHPAs
- 6.5.1 Businesses
- 6.5.2 Agencies
- 6.5.3 Telephone Information Lines
- 6.5.4 Response to Notifications
- 6.6 Implementation Plan Contaminant Source Inventory
- 6.7 Future Well Sites
- 7.1 Introduction
- 7.2 Contamination Detection
- 7.2.1 Monitoring Wells/Contaminant Detection
- 7.2.2 Production Well Contaminant Detection
- 7.3 Individual Purveyor Contingency Plans
- 7.4 Master Contingency Plan
- 7.4.1 Emergency Responses
- 7.4.2 Purveyor Operational Response
- 7.5 Plan Updates
- 7.6 Long-Term Goal
- 8.1 Introduction
- 8.2 Notification of Businesses and Agencies
- 8.3 Public Education and Outreach
- 8.3.1 Advertisements and Notifications
- 8.3.2 Summary of Meetings
- 8.4 Citizens Wellhead Committee
- 8.4.1 Introduction
- 8.4.2 Meetings
- 8.4.3 July 8 Meeting
- 8.4.4 July 29 Meeting
- 8.4.5 August 12 Meeting
- 8.4.6 August 26 Meeting
- 8.4.7 September 2 Meeting
- 8.4.8 September 16 Meeting
- 8.4.9 September 23 Meeting
- 8.4.10 October 14 Meeting
- 8.4.11 November 4 Meeting
- 8.4.12 May 19, 1999 Meeting
- 8.5 Focus Groups
- 8.5.1 Introduction
- 8.5.2 Meetings
- 8.6 Community-Wide Telephone Survey
- 8.7 Policy Coordinating Committee
- 8.7.1 Introduction
- 8.7.2 Proposed Implementation Action Items
- 8.7.3 Implementation of “Consensus” Items
- 8.7.4 Summary
- Appendix A – Department of Health – Delineation Letter
- Appendix B – Filed Data Collection Plan and QA/QC Plan
- Appendix C – Well Construction Diagrams Monitoring Well Construction Details and Boring Logs
- Appendix D – Monitoring Network Field Reconnaissance Data Sheets
- Appendix E – Data Analysis Methods for Aquifer Tests
- Appendix F – Interpre’tech/Siespulse Seismic Reflection Survey Report
- Appendix G -Micograirty Gradiometry Survey-Northwest Geophysical Association
- Appendix H – Washington Water Power Well Logs
- Appendix I – Importance Factors for Water Supply Wells
- Appendix J – Discussions of Modified Parameter Values and the Recalibration Process
- Appendix K – SAJB Letterhead, Logo, and Magnet
- Appendix L – Newsletters and Distribution Lists
- Appendix M – Public Presentations
- Appendix N – Media Package
- Appendix O – SIC Risk Code Assignments
- Appendix P – Potential Contaminant Source Inventory Lists
- P-1 SCWQMP Critical Material Users
- P-2 Facility Index System
- P-3 Resource Conservation and Recovery Information System
- P-4 Corrective Action Database
- P-5 Comprehensive Environmental Response, Compensation and Liability Information System
- P-6 National Priorities List
- P-7 EPCRA – Hazardous Site Listing
- P-8 EPCRA – Toxic Chemical Release Reporting
- P-9 EPCRA – Hazardous Chemical Inventory
- P-10 Confirmed and Suspected Contaminated Sites Report
- P-11 Hazardous Sites List
- P-12 Underground Storage Tanks
- P-13 Leaking Underground Storage Tanks
- P-14 Shopsweep Survey
- P-15 Snapshot Survey
- P-16 SWM – Drycleaner Survey
- P-17 WSDA – Agencies
- P-18 WSDA – Commercial Applicators
- P-19 WSDA – Private Applicators
- P-20 Spokane Fire Department Hazardous Materials List
- P-21 Historical – Sandborn Insurance, Milesker Maps, Newspapers
- P-22 High Risk Sites (IDAHO)
- Appendix Q – Contingency Plan Reports
- Carnhope Irrigation District No. 7
- Consolidated Irrigation District No. 19
- East Spokane Water District No. 1
- Hutchinson Irrigation District No. 16
- Irvin Water District No. 6
- Kaiser Aluminum Corp. – Mead Works
- Kaiser Aluminum Corp. – Trentwood
- Liberty Lake Sewer/Water District
- Millwood, Town of
- Moab Irrigation District No. 20
- Model Irrigation District No. 18
- Modern Electric Water Company
- North Spokane Irrigation District No. 8
- Orchard Avenue Irrigation District No. 17
- Pasadena Park Irrigation District No. 17
- Spokane County Water District No. 3
- Spokane Industrial Park
- Trentwood Irrigation District No. 3
- Vera Water & Power
- Whitworth Water District No. 2
- Appendix R- News Releases and Media List
- Appendix S- Potential Source Letters of Notification and Attachments
- Appendix T- Agency Letter of Notification and Attachments
- Appendix U- Agency Correction Letters
- Appendix V- CWC Meeting Minutes
- Appendix W – Focus Group Meeting Minutes
- Appendix X – Community-Wide Survey
- Figure ES-1: Site Vicinity Map
- Figure: 1-1 Wellhead Protection Study Area – SAJB Wells/Wellfields
- Figure: 1-2 SAJB Purveyor Water Districts
- Figure: 1-3 Wellhead Protection Study Area –Aquifer Wide Protection Area
- Figure 2-1: Wellhead Protection Area Monitoring Wells
- Figure 2-2: Data Collection Points and water table map for the Discrete Monitoring Event
- Figure 2-3: Idaho Road Monitoring Well
- Figure 2-4: Location of Seismic Reflection Survey Line
- Figure 2-5: Sullivan Road North-South Seismic Reflection Profile
- Figure 2-6: Microgravity Gradiometry Survey Transect
- Figure 2-7: Gravity Model Profile #1: Trough Sediment Density of 1.95 gm/cm3
- Figure 2-8: Gravity Model Profile # 2: Trough Sediment Density of 2.10 gm/cm3
- Figure 2-9: Location of Deep Wells and North Spokane Geologic Cross Sections
- Figure 2-10: Geologic Cross Section A-A’
- Figure 2-11: Geologic Cross Section B-B’
- Figure 2-12: Geologic Cross Section C-C’
- Figure 2-13: Geologic Cross Section D-D’
- Figure 2-14: Little Spokane River Basin Focused Investigation Area
- Figure 3-1: Particle Tracking Plot – Carnhope Irrigation District No. 7
- Figure 3-2: Particle Tracking Plot – Consolidated Irrigation District No. 19
- Figure 3-3: Particle Tracking Plot – East Spokane Water District No. 1
- Figure 3-4: Particle Tracking Plot – Hutchinson Irrigation District No. 16
- Figure 3-5: Particle Tracking Plot – Irvin Water District No. 6
- Figure 3-6: Particle Tracking Plot – Kaiser Aluminum Corp. – Mead Works
- Figure 3-7: Particle Tracking Plot – Kaiser Aluminum Corp. – Trentwood
- Figure 3-8: Particle Tracking Plot – Liberty Lake Sewer/Water District
- Figure 3-9: Particle Tracking Plot – Town of Millwood
- Figure 3-10: Particle Tracking Plot – Moab Irrigation District No. 20
- Figure 3-11: Particle Tracking Plot – Model Irrigation District No. 18
- Figure 3-12: Particle Tracking Plot – Modern Electric Water Company
- Figure 3-13: Particle Tracking Plot – North Spokane Irrigation District No. 8
- Figure 3-14: Particle Tracking Plot – Orchard Avenue Irrigation District No. 6
- Figure 3-15: Particle Tracking Plot – Pasadena Park Irrigation District No. 17
- Figure 3-16: Particle Tracking Plot – Spokane County Water District No. 3 (North)
- Figure 3-17: Particle Tracking Plot – Spokane County Water District No. 3
- Figure 3-18: Particle Tracking Plot – Spokane Industrial Park
- Figure 3-19: Particle Tracking Plot – Trentwood Irrigation District No. 3
- Figure 3-20: Particle Tracking Plot – Vera Water & Power
- Figure 3-21: Particle Tracking Plot – Whitworth Water District No. 2
- Figure 3-22: Proposed Wellhead Protection Areas – Carnhope Irrigation District No. 7
- Figure 3-23: Proposed Wellhead Protection Areas – Consolidated Irrigation District No. 19
- Figure 3-24: Proposed Wellhead Protection Areas – East Spokane Water District No. 1
- Figure 3-25: Proposed Wellhead Protection Areas – Hutchinson Irrigation District No. 16
- Figure 3-26: Proposed Wellhead Protection Areas – Irvin Water District No. 6
- Figure 3-27: Proposed Wellhead Protection Areas – Kaiser Aluminum Corp. – Mead Works
- Figure 3-28: Proposed Wellhead Protection Areas – Kaiser Aluminum Corp. – Trentwood
- Figure 3-29: Proposed Wellhead Protection Areas – Liberty Lake Sewer/Water District
- Figure 3-30: Proposed Wellhead Protection Areas – Town of Millwood
- Figure 3-31: Proposed Wellhead Protection Areas – Moab Irrigation District No. 20
- Figure 3-32: Proposed Wellhead Protection Areas – Model Irrigation District No. 18
- Figure 3-33: Proposed Wellhead Protection Areas – Modern Electric Water Company
- Figure 3-34: Proposed Wellhead Protection Areas – North Spokane Irrigation District No. 8
- Figure 3-35: Proposed Wellhead Protection Areas – Orchard Avenue Irrigation District No. 6
- Figure 3-36: Proposed Wellhead Protection Areas – Pasadena Park Irrigation District No. 17
- Figure 3-37: Proposed Wellhead Protection Areas – Spokane County Water District No. 3 (North)
- Figure 3-38: Proposed Wellhead Protection Areas – Spokane County Water District No. 3
- Figure 3-39: Proposed Wellhead Protection Areas – Spokane Industrial Park
- Figure 3-40: Proposed Wellhead Protection Areas – Trentwood Irrigation District No. 3
- Figure 3-41: Proposed Wellhead Protection Areas – Vera Water & Power
- Figure 3-42: Proposed Wellhead Protection Areas – Whitworth Water District No. 2
- Figure 3-43: Proposed Wellhead Protection Areas – ALL Purveyors
- Figure 4-1: Citizen’s Involvement Group – Membership Form
- Figure 6-1: Contaminant Source Inventory Coordinator Task Flow Chart
- Figure 6-1a: Current Potential Contaminant Sources – Carnhope Irrigation District No. 7
- Figure 6-2a: Current Potential Contaminant Sources – Consolidated Irrigation District No. 19
- Figure 6-3a: Current Potential Contaminant Sources – East Spokane Water District No. 1
- Figure 6-4a: Current Potential Contaminant Sources – Hutchinson Irrigation District No. 16
- Figure 6-5a: Current Potential Contaminant Sources – Irvin Water District No. 6
- Figure 6-6a: Current Potential Contaminant Sources – Kaiser Aluminum Corp. – Mead Works
- Figure 6-7a: Current Potential Contaminant Sources – Kaiser Aluminum Corp. – Trentwood
- Figure 6-8a: Current Potential Contaminant Sources – Liberty Lake Sewer/Water District
- Figure 6-9a: Current Potential Contaminant Sources – Town of Millwood
- Figure 6-10a: Current Potential Contaminant Sources – Moab Irrigation District No. 20
- Figure 6-11a: Current Potential Contaminant Sources – Model Irrigation District No. 18
- Figure 6-12a: Current Potential Contaminant Sources – Modern Electric Water Company
- Figure 6-13a: Current Potential Contaminant Sources – North Spokane Irrigation District No. 8
- Figure 6-14a: Current Potential Contaminant Sources – Orchard Avenue Irrigation District No. 6
- Figure 6-15a: Current Potential Contaminant Sources – Pasadena Park Irrigation District No. 17
- Figure 6-16a: Current Potential Contaminant Sources – Spokane County Water District No. 3 (North)
- Figure 6-17a: Current Potential Contaminant Sources – Spokane County Water District No. 3
- Figure 6-18a: Current Potential Contaminant Sources – Spokane Industrial Park
- Figure 6-19a: Current Potential Contaminant Sources – Trentwood Irrigation District No. 3
- Figure 6-20a: Current Potential Contaminant Sources – Vera Water & Power
- Figure 6-21a: Current Potential Contaminant Sources – Whitworth Water District No. 2
- Figure 6-22a: Current Potential Contaminant Sources & Aquifer Wide Protection Area– ALL PURVEYORS
- Figure 6-1b: Historical Potential Contaminant Sources – Carnhope Irrigation District No. 7
- Figure 6-2b: Historical Potential Contaminant Sources – Consolidated Irrigation District No. 19
- Figure 6-3b: Historical Potential Contaminant Sources – East Spokane Water District No. 1
- Figure 6-4b: Historical Potential Contaminant Sources – Hutchinson Irrigation District No. 16
- Figure 6-5b: Historical Potential Contaminant Sources – Irvin Water District No. 6
- Figure 6-6b: Historical Potential Contaminant Sources – Kaiser Aluminum Corp. – Mead Works
- Figure 6-7b: Historical Potential Contaminant Sources – Kaiser Aluminum Corp. – Trentwood
- Figure 6-8b: Historical Potential Contaminant Sources – Liberty Lake Sewer/Water District
- Figure 6-9b: Historical Potential Contaminant Sources – Town of Millwood”
- Figure 6-10b: Historical Potential Contaminant Sources – Moab Irrigation District No. 20
- Figure 6-11b: Historical Potential Contaminant Sources – Model Irrigation District No. 18
- Figure 6-12b: Historical Potential Contaminant Sources – Modern Electric Water Company
- Figure 6-13b: Historical Potential Contaminant Sources – North Spokane Irrigation District No. 8
- Figure 6-14b: Historical Potential Contaminant Sources – Orchard Avenue Irrigation District No. 6
- Figure 6-15b: Historical Potential Contaminant Sources – Pasadena Park Irrigation District No. 17
- Figure 6-16b: Historical Potential Contaminant Sources – Spokane County Water District No. 3 (North)
- Figure 6-17b: Historical Potential Contaminant Sources – Spokane County Water District No. 3
- Figure 6-18b: Historical Potential Contaminant Sources – Spokane Industrial Park
- Figure 6-19b: Historical Potential Contaminant Sources – Trentwood Irrigation District No. 3
- Figure 6-20b: Historical Potential Contaminant Sources – Vera Water & Power
- Figure 6-21b: Historical Potential Contaminant Sources – Whitworth Water District No. 2
- Figure 6-22b: Historical Potential Contaminant Source & Aquifer Wide Protection Area – ALL PURVEYORS
- Figure 7-1: Approach to Groundwater Contingency Plan for a Monitoring Well Showing Contamination
- Figure 7-3: Approach to Emergency Response within WHP Area
- Figure 7-4: Emergency Response Communications Flowchart
- Figure 8.1 The Wellhead Protection Program Implementation Process.
- Figure 8.2 – Notice of Public Meetings
- Table 2-1: SAJB Water Level Monitoring Network
- Table 2-2: Water Level Data – October 30, 1996 Monitoring Event
- Table 2-3: Data for Pumping Wells Operating During the Water Level Monitoring Event
- Table 2-4: Draw-down Response from Vera #2-1 Aquifer Test
- Table 2-5: Draw-down Response from NSID Well #3 Aquifer Test
- Table 2-6: Draw-down Response from CID Well #11A Aquifer Test
- Table 2-7: Draw-down Response from CID Well #4B Aquifer Test
- Table 2-8: Summary of Aquifer Testing Calculations
- Table 2-9: Summary of North Spokane Aquifer Groundwater Quality Results
- Table 2-10: Little Spokane River Valley Data Collection Network Survey Data and Water Level Measurements
- Table 3-1: Inventory and Delineation Design Summary for SAJB Wells
- Table 3-2: Inventory of Non-SAJB Wells Simulated During SAJB Delineation Process
- Table 3-3: Summary of Simulated Stream-flow Gains and Losses
- Table 3-4: CFR Calculations for SABJ Wells Located Outside the Spokane Valley Aquifer System
- Table 5-1: CSI Inventories and Risk Assessment Codes
- Table 6-1: Current Potential Contaminant Sources
- Table 6-2: Historical Potential Contaminant Sources
- Table 6-3: Potential Contaminant Sources in the Aquifer Wide Protection Area – All Purveyors
- Table 7-1: Volatile Organic Constituents
- Table 7-2: Synthetic Organic Constituents (Phase II/V)
- Table 7-3: Inorganic Constituents
- Table 7-4: Emergency Response Phone List