SR - AGR-6493 - PURCHASE AND INSTALL IRRIGATION BOOSTER PUMPS1. SUBJECT
Agreement to purchase and install irrigation booster pumps at Serrano and Santiago Hills Parks.
2. SUMMARY
Due to insufficient water pressure at Serrano and Santiago Hills Parks, new irrigation booster
pumps need to be installed. This project is consistent with the City's irrigation efficiency efforts,
including the current project to install a Calsense irrigation control systems at Serrano and
Santiago Hills Parks under a separate agreement. The pumps will allow for greater efficiency of
the Calsense system by providing the ability to deliver the proper amount of water over a shorter
period of time, making it possible to fit watering schedules into limited windows of available
time.
3. RECOMMENDED ACTION
Approve Agreement with STL Landscape, Inc. in the amount of $98,000 and authorize the
Mayor and the City Clerk to execute on behalf of the City.
4. FISCAL IMPACT
Funds are available to cover the cost of the Agreement as follows:
511.7021.56015.20184 (Booster Pump Installation at City Parks) $98,000
5. STRATEGIC PLAN GOAL(S)
3a: Renovate, refurbish and improve public use places and spaces that are functional and safe.
6. GENERAL PLAN IMPLEMENTATION
Policy 5.1
Maintain existing City parks at levels that provide maximum recreational benefit to City
residents.
7. DISCUSSION and BACKGROUND
Background
Serrano Park is a four acre park that was acquired by the City in 2004. The park features a
basketball court, volleyball court, rubberized surface tot lot, reservable picnic shelter and a large
turf area. The park's original booster pump has proven to be undersized and inadequate. The
existing irrigation system does not have adequate water pressure needed to efficiently operate
valves at the outer edges of the park, and a consequence of this is that water cannot be efficiently
delivered to irrigate the landscape. While we endeavor to reduce the amount of water used for
landscape purposes, landscape that is irrigated must be done as efficiently as possible.
Santiago Hills Park is an eight acre park that was acquired in 1989. The park features a
basketball court, volleyball court, wood chip surface tot lot, reservable picnic shelter and a large
turf area. The park was originally designed with a booster pump that has become inoperable. The
new booster pump will have a much smaller footprint which will open up the area for future use,
possibly an area for exercise equipment.
The new booster pumps will be located above - ground and installed on a concrete pad
approximately 5'x 4' in size. These new booster pumps are consistent with the City's efforts to
improve efficiencies in the delivery of irrigation water, and will become an integral partnering
component to the new Calsense irrigation control system being installed as a separate project.
The current operating pressure for Serrano and Santiago Hills Park's irrigation system does not
allow for maximizing the use of the watering window during park closure hours from 11:00 pm —
5:00 am. In order to maximize use of the available watering time window, it is necessary to
operate multiple valves concurrently. The proposed booster pump will increase the operating
pressure to the system, allowing for multiple valves to water at the same time, thereby delivering
water to the landscape more efficiently. Paired with the planned installation of a Calsense
weather -based irrigation control system, a more efficient delivery of water to the landscape can
occur. By maximizing the use of available time to water, the Calsense system is able to push the
maximum available water out, optimizing delivery by pairing valves by their water demand.
This also improves the ability to use multiple start times for each zone, maximizing penetration
of water into the soil and minimizing runoff.
ITEM 2 7/11/2017
Discussion
The Community Services Department advertised Bid #167 -40 on April 17, 2017. Two bids were
received on May 25. STL Landscape, Inc. is the apparent lowest responsible bidder with a bid
amount of $98,000 for both pumps. A bid summary is attached. STL Landscape's bid is $2,000
less than the project estimate. The contractor's references and commensurate experience were
reviewed and deemed acceptable.
Booster Pump Installation at City Parks is approved CIP No. 20184 funded by Park Acquisition
and Development fees, Fund 511.
The work will be scheduled upon execution of the agreement and be completed within 30
working days. There should be minimal to no impact to the public during installation.
8. ATTACHMENTS
• Bid Abstract
• Agreement
ITEM 3 7/11/2017