Hancock Parkway Properties – Stormwater Pump Station
Stormwater Lift Station Project Description
Hancock Parkway Properties, with the help of CRC Engineering (the site engineer), planned and designed a new commercial development in Valencia, California, in Los Angeles County. The site of the new development is close to the Santa Clara River, driving the need for all the stormwater runoff to be collected and treated in order to keep contaminated water from making its way into the Santa Clara.
Rainwater picks up chemicals from our roads and emissions that can cause damage to the ecosystems in our waterways. Due to the potential of polluted runoff water, California has developed regulations for how stormwater will be collected from commercial areas. This new development needed a stormwater pump station to manage runoff from the buildings and parking lot, prompting Jensen Design and Survey Inc. (consulting engineer) to bring the project to Romtec Utilities.
Around the site, catch basins collect the rainwater from the parking lot and roof drains, which is then pumped by the lift station into an existing “bio-swale” to be filtered and gravity fed into the stormwater system. A Bioswale is a vegetated area that collects stormwater runoff and can “improve water quality by infiltrating the first flush of storm water runoff and filtering the large storm flows they convey” (“Bioswales”, 2005).
Stormwater Lift Station Design
The supplied lift station is composed of a 6’ inner diameter, precast concrete wet well that is approximately 18.5’ in depth. Two 7.5 Keen Submersible pumps are housed in this duplex system, with four NOLTA floats as the level sensing devices. The level sensors are hung at predetermined depths in the well, and when the level is high enough to disrupt the sensors, the controller, an alternator relay, automatically starts and stops the pump down cycles. In addition to the precast wet well, Romtec Utilities also supplied a precast, in-ground junction box.
The Romtec Utilities lift station was supplied to Keane Construction (general contractor) and was installed by Russ C. Backhoe (sub-contractor). The successful installation of this system allowed for an effective startup by Romtec Utilities Start-Up Technicians, and allowed the lift station to be commissioned into service for the end owner, Hancock Parkway Properties, who will be maintaining the station.
What Romtec Utilities Provided
- Pump Station Design & Engineering
- Package Pump Station Supplier
- Package Pump Station Manufacturer
- On-Site Construction Adviser
- On-Site Start-Up Management
450 | 15.8′ |
GPM | TDH |