A major landscape makeover is helping a San Diego County neighborhood save money during these uncertain economic times. The WaterSmart Contractor Incentive Program helps qualified landscape contractors as well as large homeowners associations, save money and improve water-use efficiency in large landscapes by retrofitting irrigation devices.
A major landscape makeover is helping a San Diego County neighborhood save money during these uncertain economic times. The WaterSmart Contractor Incentive Program helps qualified landscape contractors as well as large homeowners associations, save money and improve water-use efficiency in large landscapes by retrofitting irrigation devices.
The San Diego County Water Authority and the Vallecitos Water District recently worked with the San Elijo Community Association and O’Connell Landscape Maintenance to install water-efficient devices throughout its entire association property. Photo: Vallecitos Water District
The San Diego County Water Authority and the Vallecitos Water District recently worked with the San Elijo Community Association and O’Connell Landscape Maintenance to install water-efficient devices throughout its entire association property, including 2,500 stations and 50 controllers. In addition, rebates allowed O’Connell Landscape to convert spray irrigation and rotor irrigation to drip irrigation, and add flow sensors.
Van Dyke Landscape Architects and its team of certified landscape irrigation auditors assessed the irrigation system in order to make recommendations for the system upgrades. Van Dyke performed initial irrigation audits to determine what types of irrigation upgrades would benefit San Elijo’s terrain and soil types best.
Through its report, the landscape architects recommended areas of opportunity for the San Elijo HOA to save its homeowners money and water long-term. Through the WSCIP, the project earned $24,000 in rebates. The amount of water savings from weather-based controllers can range from 10% to 30% of actual water applied, and another 20% to 40% water savings by changing to a pressure-regulated point source drip system.
O’Connell Landscape Maintenance performed the irrigation work for the San Elijo HOA. Photo: Vallecitos Water District
“The smart irrigation controllers help send an alarm when there is a break, and the controller will stop the master valve and stop the leak,” said Fabian Alejo, account manager for O’Connell Landscape Maintenance. “The smart controller makes it easier for us to monitor flow, water usage, and leaks.”
Alejo said that the software that comes with the controller allows crews to get alarms in real time.
“Getting the alarms in real time pinpoints exactly the controller and the station number where we have a high water or no flow reading, allowing us to make repairs immediately where water is being wasted,” said Alejo.
Van Dyke landscape architect Nick Concra managed the rebate process.
“The rebate program is incredible,” said Concra. “HOAs using this program can save a lot of money, and a lot more than they think.”
Participants in the WaterSmart Contractor Incentive program call it “priceless.” Photo: Vallecitos Water District
Yale Hooper, principal landscape architect with Van Dyke, said the teamwork among the participants with the Water Authority and Vallecitos Water District makes the program so successful.
“From our perspective as landscape architects, these programs are priceless,” said Hooper. “If I were a contractor or HOA, these are ‘must do’ programs.”
Encinitas, Calif. — The Vida Pacifica Homeowner Association in Encinitas has begun receiving locally produced recycled water from Olivenhain Municipal Water District. Converting to recycled water will allow the HOA to save approximately 9.6 acre-feet of potable water annually, or over 3.1 million gallons. Each acre-foot contains about enough water to cover a football field, one foot deep.
Seagate Village Homeowner Association in Encinitas Now Irrigating with Recycled Water
Encinitas, Calif. — Olivenhain Municipal Water District began supplying locally produced recycled water to the Seagate Village Homeowner Association in Encinitas today. By converting to recycled water, the HOA will offset imported potable demand by about 9.5 acre-feet annually, or nearly 3.1 million gallons, as well as reduce their expenses due to the reduced cost of recycled water. Each acre-foot is enough water to offset the total water use of more than two average households for a year.
In its efforts to maintain its critical infrastructure, the Vallecitos Water District undertook a challenging update to a wastewater system pipeline constrained by its precarious location.
In its efforts to maintain its critical infrastructure, the Vallecitos Water District undertook a challenging update to a wastewater system pipeline constrained by its precarious location.
The existing eight-inch gravity sewer pipeline conveys wastewater from the intersection of Rock Springs Road and Bennett Avenue west through a greenbelt area to an existing 12-inch pipeline in Rock Springs Road at Lancer Park Avenue. To expand capacity for current and future growth, it was replaced with a new 15-inch PVC pipe west of Matthew Lane and a 12-inch PVC pipe north and east of Matthew Lane.
The location of the affected manhole put equipment and crews close to a SDG&E gas line inside a greenbelt park area. Photo: Vallecitos Water District
The District always prefers to perform work in a street or public right-of-way. Neither were possible for this project due to its greenbelt and park location within feet of residential homes.
“We took every environmental precaution prior to construction,” said Lito Santos, Vallecitos Water District Project Engineer. “We performed a nesting survey, a raptor survey, and we also worked to tunnel under the bridge,” within the Environmental Protection Agency’s “Clear Water Rule.”
San Marcos Woods Homeowners Association board member Ross Fisher acted as a liaison between homeowners and the HOA with the District. Fisher expressed concern about access to the work area by the District’s large combination truck. The original proposal to create a concrete strip to drive over wasn’t feasible.
Due to its incredible strength, the grass-crete and existing lawns can handle the weight of a large service vehicle driving on it without significant damage. Photo: Vallecitos Water District
Working together with Vallecitos Water District engineers, the group chose an alternative material called “grass-crete.” Grass-crete is a green porous paving solution that comes in easy-to-install rolls. It’s flexible, lightweight, durable and provides design versatility to the project. Due to its incredible strength, the grass-crete and existing lawns can handle the weight of a large service vehicle driving on it without significant damage.
Manholes were waterproofed, coated, and sealed as an additional precaution and to extend their longevity. Photo: Vallecitos Water District
Vallecitos Water District engineers also worked with San Diego Gas & Electric to perform its work with enough safety clearance from a 16-inch transmission main artery gas line pressurized at 800 pounds per square inch. The District secured permission to dig within two to three feet from the line instead of the standard five feet.
The work area is also prone to flooding after large rain events, raising the water levels in the nearby creek high enough to infiltrate and inflow into the manholes. The District moved the manholes clear of the creek embankment, and lifted the manholes two feet above ground and clear of the flood plain to prevent runoff intrusion. Manholes were waterproofed, coated, and sealed as an additional precaution and to extend their longevity.
The District moved the manholes clear of the creek embankment, and lifted the manholes two feet above ground and clear of the flood plain to prevent runoff intrusion. Photo: Vallecitos Water District
“Overall Vallecitos left the greenbelt area as good or better when they started,” said Fisher of the HOA. “On a scale of one to ten, I have to give them a 9.5 or a ten. Working with the inspectors and Lito Santos the engineer, everything we asked for was done in a timely manner.”
“The project was a huge success,” said Santos. “Working with the Vallecitos Engineering Team, the Inspection Team and Mr. Fischer, it was not just a Vallecitos highlight but a career highlight.”
Encinitas, Calif. — Olivenhain Municipal Water District connected Village Park Townhomes 2 Homeowners Association to its recycled water system this week. Using recycled water to meet irrigation needs will lower the HOA’s water bills and save an estimated seven million gallons of potable water each year.
“We are happy to see another HOA make the decision to invest in recycled water for irrigation,” said OMWD Board President Ed Sprague. “Converting to locally produced recycled water is a sustainable choice for customers like HOAs, municipalities, golf courses, and schools.”
Encinitas, Calif. — Olivenhain Municipal Water District began serving recycled water to the Del Rayo Downs Homeowner Association in Rancho Santa Fe this week. The conversion to recycled water enables the HOA to save money on its monthly water bill while decreasing imported water demand by approximately 17.5 acre-feet annually. An acre-foot is enough to serve two typical families of four for a year.
