Close
Loading

LANDSCAPE TRANSFORMATION PROGRAM

Sustainable Approach Techniques

Home Landscape Transformation Program LANDSCAPE TRANSFORMATION PROGRAM
Using a Sustainable Approach in Your Landscape Conversion

The Landscape Transformation Program requires the inclusion of a rainwater capture or filtration system integrated into the landscape project. This sustainable approach integrated into the overall landscape design serves to reduce rainwater runoff onto sidewalks and streets and capture rainwater for reuse. The following are details of the eligible approaches with suggestions on how to construct the sustainable approaches to meet this requirement.

Rain Gardens

A rain garden is a planted depression or hole filled with a loose, permeable soil mix that allows rainwater runoff from impervious urban areas like roofs, driveways, walkways, parking lots, and compacted lawn areas to be absorbed. Rainwater collects in the soil mix and ponding area and eventually seeps into surrounding soils over time. Plants are distributed throughout the garden. Storm water is soaked into the ground rather than flowing into storm drains and surface waters. Installation of a rain garden within your landscape project can reduce erosion, pollution, flooding and diminished groundwater.

Rock Gardens

A rock garden is a shallow excavation filled with 1-3 inch diameter gravel. Rainwater is stored in the space between the stones and eventually percolates into the soil. Plants are distributed throughout the rock garden and there is no ponding area – so one can walk on it.

Dry River Beds (Rock-lined Swale)

A dry river bed or dry stream is an area designed to slow heavy flows of water from rainfall and correct erosion problems. It is made up of a shallow swale (see section on vegetated swales) lined with stone substantial enough to withstand a serious downpour. Large chunks of stone are used to slow the speed of storm water and prevent erosion. In a garden, the careful placement of water-worn stone, or river slicks along a swale can be a beautiful design that also provides an ideal place for plants. Please view the video on dry river beds for more information on implementation of this design in your project.

Vegetated Swales

A vegetated swale is a shallow ditch that has gently sloping sides. Native perennial grasses are planted along the bottom and sides of the swale to slow runoff, filter sediments, and remove excess nutrients. A swale relies on gravity to move water and is designed to direct the water where you want it to go, such as flower or vegetable gardens. In order for the water to gravity flow there should be a minimum 2% slope from beginning to end.

Berms

Berms are mounds of earth with sloping sides that are located between areas of approximately the same elevation. Berms are designed to direct or redirect water in order to keep it from flowing off the property. For more information on berms and how they can be used in your landscape design, please view the provided video.

Grades

Grades are surface grading of an area so that water collects and flows to a lower elevation away from the water collection site. Regardless of surface characteristics, when planning to add a grade for surface drainage, slope is the most important consideration. For efficient drainage, paved surfaces should have a minimum 1 percent slope. Turf or landscaped areas should have a minimum of 2 percent slope. For more information and effective utilization of grades in your project, please view the provided video.

Rain Barrels/Cisterns

Rain barrels and cisterns are storage tanks that capture runoff water from downspouts from a catchment area such as a rooftop. Cisterns are a larger version of rain barrels, with a larger capacity for rainwater collection and storage. Rain barrels and cisterns must both be connected properly to installed rain gutters and downspouts. In order for the rain barrel/cistern to quality as a rainwater capture feature, the property must have existing gutters around the full perimeter of the roof and existing downspouts for adequate water collection. Installed rain barrels must meet all local and regional requirements. Newly purchased rain barrels may qualify for an additional rebate. Please visit the residential devices page for qualifications. Existing rain barrels and cisterns will qualify provided that they have been properly installed and provide water to the project area Please visit the residential devices page for qualifications. Existing rain barrels and cisterns will qualify provided that they have been properly installed.

ESTIMATE

YOUR REBATE


Click below to verify eligibility and identify the current rebate amounts for your new water saving device(s) or measure(s). Rebate amounts may vary by water agency and are based on the availability of funding.

Estimate Your Rebate

GET YOUR REBATE

APPLY ONLINE


Complete and submit your application online. Rebates are available region-wide.

Apply for Rebate