# Sole Source Aquifers

## Checklist for HUD or Responsible Entity

  ------------------------- ----------------------- ----------------------
  **General requirements**  **Legislation**         **Regulation**

  Protect drinking water    Safe Drinking Water Act 40 CFR 149.2
  systems which are the     of 1974 (42 U.S.C. 201, 
  sole or principal         300 et seq., and 21     
  drinking water source for U.S.C. 349)             
  an area and which, if                             
  contaminated, would                               
  create a significant                              
  hazard to public health.                          
  ------------------------- ----------------------- ----------------------

1\. Is the project located on a sole source aquifer (SSA) including
streamflow source areas?

+-----------------------------------------------------------------------+
| Maintain, in your ERR, a copy of the latest SSA printout from the     |
| internet site                                                         |
|                                                                       |
| > [http://cfpub.                                                      |
| epa.gov/safewater/sourcewater/sourcewater.cfm?action=SSA]{.underline} |
| > (Make sure the map you are viewing includes streamflow source       |
| > areas. Also note, the map does not include the Troutdale Aquifer    |
| > that was designated in September 2006                               |
| > <http                                                               |
| ://www.epa.gov/fedrgstr/EPA-WATER/2006/September/Day-06/w14710.htm>). |
| > If your project is close to the boundary and you are not certain if |
| > it is on the SSA, contact Martha Lentz at (206) 553 1593 or         |
| > <Lentz.Martha@epamail.epa.gov> to make a final determination. You   |
| > will need to provide the project street address and detailed maps,  |
| > if available.                                                       |
+-----------------------------------------------------------------------+

No: STOP here. The Sole Source Aquifer authority does not apply. Record
your determination.

Yes: PROCEED to \#**2**

2.  **Is the project located in Idaho?**

Yes: Follow the 2000 Sole Source Aquifer Memorandum of Understanding
between HUD/Idaho Division of Community Development/Idaho Housing and
Finance Association and EPA. Record your determination on the Statutory
Worksheet.

No: PROCEED to #3

3.  Does the project consist of an individual action on a one-to-four
    unit residential building (including acquisition, disposition, new
    construction and rehabilitation) that meets all applicable local and
    state groundwater regulations?

Yes: STOP here. The project is not likely to affect Sole Source Aquifer
quality. Record your determination on the Statutory Worksheet.

No: PROCEED to #4

4.  Does the project consist of acquisition, disposition or
    rehabilitation of a multifamily (5 or more dwelling units)
    residential building, commercial building or public facility that
    does not increase size or capacity and meets all applicable local
    and state groundwater regulations?

Yes: STOP here. The project is not likely to affect Sole Source Aquifer
quality. Record your determination on the Statutory Worksheet.

No: PROCEED to #5

5.  Does the project consist of new construction or rehabilitation that
    increases size or capacity of a multifamily building, commercial
    building or public facility that meets all applicable local/state
    ground-water regulations AND is served by public water, sewer and
    storm drainage systems. (If the project uses well water or a septic
    system or infiltrates storm-water on site, you must proceed to Step
    #5.)

Yes: STOP here. The project is not likely to affect Sole Source Aquifer
quality. Record your determination on the Statutory Worksheet.

No: PROCEED to #6

6.  **Is the project likely to affect Sole Source Aquifer Quality?**

Please determine if the project meets or complies with all of the
performance measures below.

> **Storm water:** Will the project be served by a public storm drainage
> system? **Yes** **No**
>
> If no, please document that the project follows local storm water
> guidelines and best management practices.

Sanitary Waste: Will the project be connected to publicly owned
treatment works? Yes No

If no, please document that the appropriate permits have been obtained
from the local health department.

**Potable water:** Will the project be connected to the community water
supply? **Yes** **No**

If no, the appropriate State or local health department or district must
be notified, water must be tested for contaminants, and all applicable
pollution prevention techniques must be used to protect the private well
from contamination. Please document process.

**Potable water II:** Are any families relying on well water within a
quarter mile radius of the project site? (For Washington projects,
please visit [http://apps.ecy.wa.gov/welllog]{.underline}) **Yes**
**No**

If yes, document number and location of wells.

**Underground Storage Tanks (USTs):** Are there any USTs at the project
site? (For Washington, please check
[www.ecy.wa.gov/programs/tcp/ust-lust/tanks.html](http://www.ecy.wa.gov/programs/tcp/ust-lust/tanks.html)
for list of USTs. For Oregon, visit
<http://www.deq.state.or.us/lq/tanks/index.htm> **Yes** **No**

If yes, all USTs must meet all applicable requirements and standards set
in state and federal regulations. These include, but are not limited to,
design, installation, construction, spill and overfill operating
specifications, registration and leak detection requirements, and
financial responsibility mechanisms.

Once finished gathering the information above, contact Martha Lentz of
EPA at (206) 553 1593 or lentz.Martha@epa.gov for an informal
consultation on the project. In addition to the technical information
above, please provide EPA with a project description, the name of the
federal funding agency, the cost of the project and information about
project deadlines. If EPA does not respond to the informal consultation
request within 30 days, you can consider the project to be not likely to
affect Sole Source Aquifer quality and proceed.

No: Stop here. The project is not likely to affect Sole Source Aquifer
quality. Maintain copies of all of the documents you have used to make
your determination and your correspondence with EPA.

Yes: Conduct a formal consultation, and if necessary, mitigate issues.

To begin formal consultation, please provide Martha Lentz of the EPA
with maps, plans and specifications, a narrative statement detailing the
nature, scope and degree of ground-water protection measures
incorporated into the design, and mitigating measures incorporated into
the design to enhance ground-water protection. You may need to hire a
technical consultant or request EPA to conduct an independent review of
the proposed project for impacts to ground water quality. If EPA
determines that the project continues to pose a significant contaminant
hazard to public health, federal financial assistance must be denied.

Once it receives the necessary information, EPA has 30 days to respond
to a formal consultation request, unless the agency requests additional
review time in writing, or HUD, a HUD Responsible Entity or EPA receives
comments suggesting that the project will have adverse impacts to a sole
source aquifer.