PUBLIC NOTICE WAC 197-11-970 DETERMINATION OF NONSIGNIFICANCE

PUBLIC NOTICE

WAC 197-11-970 DETERMINATION

OF NONSIGNIFICANCE

(DNS)

Town of Washtucna Main Well

Improvements

Description of proposal:

The Town of Washtucna proposes

to deepen their Main

Well (which experienced a mechanical

failure due to increased

drawdown in September 2020)

to increase available drawdown

and increase water flow from

the basalt aquifer. After deepening

the well the Town plans

to replace all or portions of the

piping, electrical components,

and pump house structure that

have reached the end of their

service life. In order to fund the

proposed improvements the

Town has secured funding from

the following sources: Community

Development Block Grant

(CDBG). The proposed project

would likely be constructed

in two phases: 1) Deepening

the Existing Town Well and

2) Improvements to the pump

station. These two phases are

discussed below.

Ground disturbing activities are

expected within the footprint

of the pump station and some

trenching for connection to the

water distribution system and

for a discharge line for flushing

from the well.

Deepen Town Well: Construction

will consist of deepening the

existing well by drilling approximately

800 vertical feet or until

a change in the aquifer level is

encountered. The finished well

may be as deep as approximately

1,300 feet in order to

maximize available drawdown

and inflow into the well.

Construct pump station for Town

Well: Once the well deepening

and well testing is complete the

pump house improvements will

be designed and constructed

based on the capacity of the

deepened well. This will consist

of one approximately 25 ft x 20

ft well pump station (houses

well pump, electrical, controls,

piping, appurtenances, etc)

and installation of a buried,

≈ 8-inch PVC or Ductile Iron

(DI) main from the well pump

station to the City’s existing

distribution system. The City’s

distribution system is relatively

close (approximately 100 LF).

The City will also construct an

approximately 8-inch buried

flushing piping that will daylight

to a nearby drainage way (approx.

150 LF).

Proponent: Town of Washtucna

Location of proposal:

165 North Columbia River Lane

Lead Agency: Town of Washtucna

The lead agency for this proposal

has determined that it does

not have a probable significant

adverse impact on the environment.

An environmental impact

statement (EIS) is not required

under RCW 43.21C.030 (2)

(c). This decision was made

after review of a completed

environmental checklist and

other information on file with

the lead agency. This information

is available to the public

on request.

 There is no comment period

for this DNS.

 This DNS is issued after using

the optional DNS process

in WAC 197-11-355. There is

no further comment period on

the DNS.

X This DNS is issued under

WAC 197-11-340(2); the lead

agency will not act on this

proposal for at least 14 days

from the date of publication

(11/29/23). Comments must be

submitted by 12/13/23.

Responsible official: Teresa

Correll

Position/title: Clerk-Treasurer

Phone: (509) 646-3253

Address:

165 NE Main St.

Washtucna, WA 99371

You may appeal this determination

in writing to the Town

of Washtucna Council at 165

NE Main St., Washtucna, WA

99371 no later than 12/13/23

(14 days from the date of this

publication). Only specific, factual

objections will be accepted

Published November 29 and

December 6, 2023