HomeMy Public PortalAboutBox 502 - 2nd letter from Kirkpatrick 3-29-00CM. OF 1VICCALL
CITY MANAGER
March 29, 2000
Jack Gantz
Idaho Department of Health & Welfare
Division of Environmental Quality
1445 North Orchard
Boise, Idaho 83706
re: J Ditch Phase 2
I&I reduction and increased land application
Dear Mr. Gantz:
As we have discussed on several occasions, the City is committed to ensuring
that the 268 million -gallon design for J Ditch Phase II will adequately address the
concerns of the regulatory agencies and serve the citizens of McCall well into the
future. To that end, the City is pursuing two methods of effectively increasing the
useful life of the facility: an aggressive inflow and infiltration (I&1) reduction
program and increased land application of treated effluent.
181 Reduction
The City has embarked upon an aggressive I&I reduction program, beginning in
earnest in FY99. We have purchased a specially -equipped vehicle and a video
camera that enables us to examine sewer lines and identify areas of high
infiltration. Previously, the City contracted for this service. In 1999, we videotaped
approximately 8,000 linear feet of what we believe to be the worst sewer lines.
This spring, the City will video additional lines and begin the analysis of those
videos.
The Payette Lakes Water & Sewer District conducted a survey of over 400
manholes throughout the sewer system, to identify areas of high inflow. A
number of the worst manholes have already been repaired, but substantial inflow
reductions can still be achieved.
The City has appropriated $250,000 for FY00 for improvements throughout the
sewer collection system. A large portion of those funds will be used for two lift
station improvement projects. The remainder will be used for manhole repair and
sewer line replacement in locations with the highest volumes of I&I.
It is the City's goal to reduce I&I by approximately 4 million gallons annually For
the next five years. We anticipate annual appropriations of ±$200,000 dedicated
216 East Park Street • McCa1I, Idaho 83638 • (2081 634-1003 • FAx (20t 634-3t138
r
.,r
Jack Gantz
re: J Ditch Phase 11, I&1 reduction and increase land application
March 29, 2000
page 2
for l&I reduction. The City Council is firmly committed to this goal and recognizes
that the continued success of the J Ditch project depends upon effective I&I
reduction.
Increased Land Application
We intend to appfy for the necessary permits to allow the City to land apply
treated effluent both before and after the traditional irrigation season. As you
know, our initial design assumptions include the application of mixed effluent and
irrigation water during an irrigation season of between 75 and 100 days.
The City is reviewing regulatory requirements and potential sites for the
application of up to one million gallons per day, for 30 days prior to and 30 days
after the irrigation season. This will yield a maximum of 60 million gallons
reduction in storage needs.
The City is confident that these measures will result in the reductions described
above. The City is committed to gaining the maximum utility from this project.
Please feel free to contact me at 634-1003 if you need any further information.
Sincerely,
Lindley 'F4i lfpatrick, ICP
Acting City Manager
/uL
cc: Ni McCall City Council
Paul Levihn
\_ David H. Bieter
George Wagner