HomeMy WebLinkAboutWell 5A Water Quality Modification Application.pdfState of
washirocn
De�a�vEt
L epartment of Ecology
Fort s: o_onal 01"ic4
4350 - 150.11 Lye. N. E.
Rsd:aond_„ Washington 95050
WATER QUALITY CERTIFICATION OR MODIFICATION
MUM—T=0 FORM
FOR DEPARTMENT OF ECOLOGY USE ONLY - DO NOT COMPLETE THIS SECTION
Date Received Office Reviewer Action Date of Action
Applicant: City of Renton
Address: City Hall
Cedar River Park
Renton, WA 98055
Phone: 206/235-2631
Agent: CH2M HILL, Sheila Pachernegg
Address P. 0. Box 91500
777 - 108th Avenue N.E.
Bellevue, WA 98009-2050
Phone: 206/453-5000
Name and Location of Project: Renton Well No. SACounty: King
Jones Ave. N.E. and N.E. 24th, Renton, WA
Corps Public Notice No. Location: Sec. 5 Twp 23N Range 5E
(if applicable)
Description of Proposed Activity (include map or diagram if necessary):
Aquifer testing of a public water supply well. Water will be dis-
charged to a stream (name unknown) adjacent to the property
boundaries. The stream outlet is at Lake Washington (map attached).
Nature of Expected Water Quality Problems and any Proposed Discharges
Discharge of untreated (non -chlorinated) groundwater to a
maximum rate of 3.3 cfs (1500 gpm). Increased turbidity is
anticipated.
Schedule and Duration of Construction Activities, Life of Project:
Eight hours of discharge (at 2 -hour intervals of increased dis-
charge) to a max. of 1500 gpm followed by 40 hours of constant
discharge at max. of 1500 gpm (3.3 cfs).
Aguifer testing will occur between January and February, 1988.
Proposed Actions During Construction to Reduce Severity or Duration of
Water Quality Impacts:
Hay bales will be placed in the stream channel to reduce erosion
of the streambed (and decrease turbidity). Fisheries concerns have
been evaluated by a CH2M HILL Fisheries Biologist and a memo sent
to Millard Deusen, Department of Fisheries (copy attached).
COMPLETE ONLY IF A MODIFICATION IS NEEDED
The State Environmental Policy Act (SEPA) was complied with on
(date) by (lead agency).
Signature Date
ECY050-1-42