sr-041481-11cSanta Monica, Cal'~.~rnia, April 7, 1981 ~~ C
~,~~ 1 4 lg8t.
To: Mayor and City Council
From: City Staff
Subject: A Report on Sewage Flows to the Colorado Street Sewer
Introduction
This report presents information regarding the existing flows into the
Colorado Sewer.
Background
In February, the Staff prepared a staff report entitled, "Recommendation
to Adopt Sewer Connection Fees." At that time, it was reported the sewer
operated under surcharge during the A.M. peak period on many weekdays. It
was further stated the largest users had been requested to discharge more
of their waste during off-peak hours.
On March 6, a report from Building Officer Rome was sent to Council entitled,
"Water Conservation and Building Codes - Information", giving the status
of building code requirements applying to water saving plumbing fixtures
and other items. Also on March 24, a report from the General Services
Department was sent to the Council entitled, "Suggestions for Water
Conservation Ordinances."
The Staff has been in contact on several occasions with several of the
largest water users. A letter from St. John's Hospital is attached for
reference. A check of three of the largest users tributary to the Colorado
Sewer shows that despite a cooperative atti ude, they have been unable to
reduce water usage in the past 4 months,
//e
pp~ 1 4 9981
To: Mayor and City; uncil _2..
From: City Staff
Sufijeot: A Report on Sewage Flows to the
Colorado Street Sewer
Santa Monica, CA
April 7, 1881
Recent observations of the sewer during the A.M. peak flow period have
shown that the surcharge situation is reduced and now occurs to a lesser
extent and during only a few hours (estimated to fie less than 6 hours)
each month. The staff .believes this reduction in flow is due to the fact
that there has been very little rain, and the resulting infiltration of
storm water has been reduced.
The City Engineer and the Director of General Services believe there will
not be a serious .surcharge problem with the Colorado .Street Sewer, if the
current schedule for replacement of the sewer, as approved by the City
Council on March 25th and February 10th, is adhered to. If that schedule
is satisfied, the construction of the new sewer will begin in July, and
significant portions will be completed and in use prior to the rainy
season this fall..
Prepared by: Stan Scholl