Tag Archives: runoff

Rainwater Collection From Whatcom to Wahkiakum

Xerxes underground tanksFrom Whatcom to Wahkiakum, rainwater collection is gaining popularity in most Washington counties. 

Whether potable or non potable, rainwater collection and use is proving to be a solution to new, stricter storm water codes throughout Washington State and elsewhere. The 2016 storm water code became effective in January 2016 and its regulations are to protect people, property and the environment from damage caused by runoff. The new code is in compliance with the new  Stormwater Discharge National Pollution Discharge Elimination Systems (NPDES).

The new Stormwater Code addresses;

  • Drainage control submittal and plan review requirements
  • Where stormwater from your site needs to go
  • On-Site Stormwater Management best practices (previously known as Green Stormwater infrastructure)
  • Erosion control requirements
  • Flow control and treatment requirements
  • Enforcement of the code

In keeping with the 2016 new Stormwater code, a Drainage Review for your project is required if you are;

  • Disturbing more than 750 square feet of land
  • Adding or replacing more than 750 square feet of hard surface 
  • Adding or replacing more than 750 square feet of a building

Rainwater collection and use can help mitigate the hard surfaces such as pavement or roof area for new construction or remodels. On site infiltration by the way of rain gardens, drywalls, irrigation and retention of rainwater is an effective practice used in stormwater management. The use of rainwater for toilet flushing, laundry facility, wash down, cooling towers, and domestic household potable use can reduce the amount of storm water run off and a reduction of city water usage. The benefits environmentally and finically for the property owner and city can be recognized as a viable solution and is excepted as part of the reduction of storm water run off. 

If you’re located in or around the Seattle area – from Wahkiakum  to Whatcom, for further information on the new stormwater code, visit:  http://www.seattle.gov/dpd/codesrules/codes/stormwater/  

Meeting the 2016 Seattle Stormwater Code

seattle-1027254_640The new Seattle 2016 stormwater code, effective Jan 1, 2016 addresses stormwater regulations in order to protect people, property, and the environment from damage caused by stormwater runoff. Drainage control, flow control and stormwater treatment, and “On Site Stormwater Management”,  are key factors in what you can and cannot do with runoff caused by impervious surfaces. The new code satisfies Seattle’s obligation to be in compliance with the Municipal Stormwater Discharge National Pollutant Discharge Elimination System (NPDES) Permit, issued by the Washington State Department of Ecology.

The city of Seattle has put out new publication of “Best Management Practices.” The Primary purpose of the BMPs is to protect beneficial uses of water resources, while reducing erosion, and contamination of stormwater runoff entering our waterways. Collecting rainwater for beneficial use can have a significant effect meeting the requirements of the new stormwater codes on any new construction within city limits. Collecting the rain and using it reduces the impervious surface of your project. Whether its use is for irrigation, toilet flushing, laundry facility, or potable use for residential, adding rainwater collection to your project’s design can be the answer to “what do I do with the runoff to meet these challenges?”, to comply with the new stormwater code.”

Contain Water Systems Inc. and RainBank Rainwater Systems can help your Seattle building project meet the 2016 stormwater code requirements.

Contain Steel  Water Tanks can be an integral part of design for commercial construction in reducing costs due to the new code and its requirements. RainBank Rainwater Systems has been designing and installing systems for more than 15 years in Washington State. Whether your project is commercial or residential, potable or non potable, RainBank and Contain have the answers for your next project. We work closely with architects, engineers, contractors, and most importantly, the customer to help meet the new stormwater codes with a knowledgeable staff and commitment of your project.

Sustainability Key Rainwater Harvesting Benefit

RWC Washington State

Colorado needs to look no further than Seattle and Washington State for the sustainability benefits of Rainwater harvesting.

The Colorado rainwater harvesting narrative shows that as time marches forward, some laws that were passed almost one hundred years ago should be reconsidered because they are just no longer practical. Sustainability wasn’t a factor back then, but it sure needs to be part of the equation now.

In October 2009—after years of argument—the state of Washington officially declared that people could collect and store rainwater captured from a rooftop or other “guzzler” system without a water right, as long as it is used on site and essentially isn’t hurting anybody else. San Juan County was the only one that allowed rainwater collection and potable use for single family residence as an exemption to the water rights issue before the 2009 decision.

Since then, King County recognized the benefits of rainwater collection in January 2011 for household usage, with support from State Department of Agriculture. So now, King County Department of Health not only allows, but encourages rainwater collection.

Commercial, private, and communities all are finding benefits to rainwater collection and the positive effects on the environment of the Pacific Northwest and our water supplies. The Washington State Department of Ecology continues to support rainwater collection and studies the effects of in stream flow rates (Skagit) and salmon habitat.

All Washington State counties allow for rooftop collection for non-potable use, with some allowing for potable use. Non-potable use includes irrigation, toilet facility, laundry, wash down and others that are not intended for consumption or bathing. Commercial applications are directing roof runoff to irrigation and toilet facilities, rather than having this runoff enter our bodies of water with pollutants picked up along the way. Households are not only using rainwater for non-potable use, but are having systems installed that treat and disinfect the rainwater to potable standards that are superior to city drinking water, thus conserving water by simply not allowing it to become runoff. Rural households are using rainwater collection that benefits aquifers by rainwater collection and household use, through infiltration after use. Communities are organizing communal gardening applying rainwater collection, removing the strain on small water systems, while promoting community evolvement and education.

We congratulate Colorado on its progress in exploring new (to them) sustainability methods. We welcome Colorado’s steps towards better understanding of the benefits that we in Washington State currently enjoy.