HomeMy WebLinkAbout9 Prosser Dam Road Well Agenda Item #
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Memorandum
To: Board of Directors
From: Ed Taylor
Date: August 1, 2007
Date of Board Meeting:
Subject: Prosser Dam Road Wells
1. WHY THIS MATTER IS BEFORE THE BOARD
This is an informational item and a request by staff for direction.
2. HISTORY
A few of the properties on Prosser Dam Road have experienced a declining water table,
which stop water production from the wells.
3. NEW INFORMATION
One of the residents has drilled their well to a greater depth, which has improved the
wells water production. Staff has reviewed the problem and has included an attached
memo of additional information items.
Additional studies and information can be prepare by a consultant. Staff can also
prepare information on the District's ability to provide water serve to the area.
4. REQUEST:
Staff is requesting direction from the Board.
AMOU7 --I
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Memorandum
To: Board of Directors
From: Ed Taylor
Date: August 1, 2007
Date of Board Meeting: August 1, 2007
Subject: Informational Items related to Prosser Dam Road Wells
1. Gray's Crossing Golf Course
a. Gray's Crossing does NOT have any water source wells.
b. All water for the Gray's Crossing golf course comes from TDPUD main
water system.
c. Gray's Crossing does have 3 wells (25 feet in depth) to monitor the
amount of fertilizers in the ground.
2. TDPUD Source - Prosser Village Well
a. The closest TDPUD water supply well to the Prosser Dam Road area is
the Prosser Village Well, located off the Prosser Village exit (now the
Overland Trail exit) in the Old Greenwood subdivision. This well is
over 4,000 feet (314 of a mile) from the residents on Prosser Dam Road.
b. The Prosser Village Well is sealed with concrete at a depth of 300 feet for
2 primary reasons. The first reason is to protect the water source
from surface contamination per State requirements. The second
reason is to assure that the well does not extract water from the
upper aquifer.
c. The upper aquifer is considered a low yield aquifer and is not conducive
for municipal supplies.
d. The TDPUD continually monitors the draw down on all production wells.
The draw down of the Prosser Village Well has not changed
since first put into service in 2002.
3. Prosser Dam Road Residential Wells.
a. These residential wells are between 100 to 150 feet deep. A few are
200 feet plus.
b. These wells draw water from the upper zone aquifer.