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Reports/Studies/Maps

Reports | Studies | Regulations | Issues | Maps
(Spokane County, Washington and Kootenai County, Idaho)

There's Always Something to
Learn About the Aquifer

 

Note: Some of the files we provide on this page are Acrobat Reader files (pdf format). To view them, you will need to have Adobe Acrobat Reader installed. If you don't have it, you can download Reader for free from Adobe's web site.

 

REPORTS

Each year, the Spokane County Water Quality Management Program issues a Water Quality Report that provides an overall assessment of water quality for the portion of the Aquifer that is in Washington.

2003 Water Quality Report (pdf format, 1.5Mb)

Aquifer Cause and Effect Report (pdf format, 12Mb) A 1978 summary by L. Esvelt, discussing water quality and threats to the resource, prompted an ongoing septic tank elimination/sewering program in the area.

 

STUDIES

Consumer Confidence Reports
Have you ever wondered what's in your water? Each year in late spring, every water customer receives a Consumer Confidence Report (CCR), that tells you the water quality results of a regular, ongoing sampling effort of your drinking water. There are a number of elements in water, and safe levels have been determined by state and federal regulators.

Call your Water Provider and ask for one - if you don't know who that is, visit our About page and look up your provider and their phone number in the table or on the Coordinated Water System Map below.

The State Department of Health, Division of Drinking Water, has the responsibility to regulate water systems in the state of Washington. Through the Source Water Assessment Program (SWAP), citizens can access more information about the source of your drinking water, and any threats to its long-term quality that can be identified and addressed through a pollution prevention approach. Click here to learn everything there is to know about their programs.

 

Watershed Studies

In 1998,the Washington State Legislature passed the Watershed Management Act to provide a framework for local citizens, interest groups, and governmental organizations to collaboratively identify and solve water-related issues in each of the 62 Water Resource Inventory Areas (WRIA) of the state.

This enables, but does not require, local groups called "planning units" to form for the purpose of conducting planning.

There are three WRIA areas designated in Washington that are impacted by the Spokane-Rathdrum Prairie Aquifer.

WRIAs 55 & 57

WRIA 56, the Latah Creek watershed.

The WRIA work will be very useful to the team that undertakes the Idaho/Washington Aquifer study described below.

Idaho / Washington Aquifer Study

In August 2001, spurred by unknown impacts of two major power plant proposals on the Rathdrum Prairie, the Regional Chambers Alliance (RCA), including Spokane Regional, Coeur d'Alene, Post Falls, West Plains and Spokane Valley Chambers of Commerce, identified the need for a comprehensive study and model of the Rathdrum Prairie/Spokane Valley Aquifer.

The power plants' applicants requested a tremendous amount of new ground water rights from the State of Idaho, with incomplete knowledge of how such withdrawals would impact the sustainability of our region's sole source of drinking water. Despite years of scientific study and well monitoring, the region's aquifer experts could not definitively determine what the impacts would be - because there has never been a comprehensive study of the bi-state aquifer.

For more than 2 years, a bi-state group of aquifer experts and community stakeholders in Idaho and Washington have met to discuss possibilities and shape the groundwork of such a study. Progress has been steady, and initial project funding is expected to pass through Congress in October 2003. If fully funded, the study is expected to take approximately 3 years.

For more specific, up-to-date information, visit the dedicated Aquifer Study website at and go to 'Publications and Products' for project scope.

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REGULATIONS

33rd-Lamont Standpipe
33rd & Lamont Standpipe

SPOKANE COUNTY, WASHINGTON Spokane County has land use regulations designed to protect critical areas from improper development through the Critical Areas Ordinance.

To view the related map of Spokane County's Critical Aquifer Recharge Areas, click here.

This includes development over the Aquifer.

For information on above ground storage, and abandonment/removal of storage tanks, click here.

The City of Spokane regulates critical, or potentially hazardous materials over the Aquifer, within city limits. Click here to view Chapter 11 of the City Code.

Washington State Department of Health, Division of Drinking Water
The Division of Drinking Water has the responsibility to regulate water systems in the state of Washington. Through the Source Water Assessment Program (SWAP), citizens can access more information about the source of your drinking water, and any threats to its long-term quality that can be identified and addressed through a pollution prevention approach. Everything to know about their programs is at your fingertips via the link above.

KOOTENAI COUNTY, IDAHO
The Panhandle Health District has links to the following topics:

  1. Shallow injection wells
  2. Subsurface sewage - has Technical Guidance Manual link to Dept. of Environmental Quality
  3. Non-domestic wastewater - policy
  4. Critical materials - has link to secondary containment ('critical materials') regulation
  5. Public water systems
  6. Rathdrum Aquifer protection (once at their site, go to 'Land Development' and click on Rathdrum Aquifer Protection)

Individual cities handle Stormwater. Go to the respective websites of the cities of Coeur d'Alene, Post Falls, and Rathdrum for further information. A Stormwater Technical Assistance Committee meets regularly and discusses community-wide issues, and has developed a Best Management Practices manual to foster consistency between the cities and county.

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AQUIFER-RELATED ISSUES

Here's where to find out about the many factors related to water quality and protection of the Aquifer, and the work being done by local county government.

SPOKANE COUNTY

Sewer Planning & Design hooks homes and businesses up to the sanitary sewer and eliminates septic tanks over the Aquifer. Septic systems do affect water quality.

Comprehensive Wastewater Management planning as our region grows, so does the demand on the capacity of our wastewater treatment system.

Stormwater Management is actively working to control runoff from roadways, rooftops and other impervious surfaces. Runoff can affect aquifer water quality.

Coordinated Water System Plan delineates the many separate, independent water systems throughout the county. To see the Spokane County map delineating these systems and their service areas and find out which water district you're in, check out the Coordinated Water System Plan map below!

For in-depth answers to questions about the above programs, click here.

 

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MAPS

Aquifer Area Extent
Click on image for a larger view.

Spokane County Coordinated Water System Plan
Click here to find your water purveyor. (PDF format)

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Early Spokane Water Main Delivery

 

 

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