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To provide education which increases public awareness of the link between clean drinking water, safe recreational waters, environmentally sustainable surface and groundwater with watershed based, best management practices related to appropriate wastewater systems, technology, treatment and management.

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Check out the Tuesday At Two Public Education Series

The Big Stink

2015 Online Event: Scottish Water septic tank services.

CLICK HERE to watch the recording!

Scottish Water maintains and improves over 30,000 miles of sewer pipes which take waste water away from homes and business premises across Scotland. They then treat this at over 1,800 waste water treatment works before returning it to the environment.

Scottish Water offers a range of septic tank de-sludging services. These services are available to household and business customers who own a private septic tank which takes standard waste, such as sewage and waste water. We continually aim to deliver a high service level to all our customers. Read on to find out more about our service as well as tips on how to look after your tank and trouble shooting those problems that sometimes come up.

March 2014

WA-DOH EPA Grant logosIn 2012, Washington State Department of Health Wastewater Management Section partnered with the University of Washington's Department of Civil and Environmental Engineering to install 3 public domain, cost-effective septic treatment technologies.

A recording of this presentation is available on our YouTube For NonProfits Channel.

A US Environmental Protection Agency National Estuary Program’s (NEP) Toxics and nutrients reduction and prevention grant allocated $630,000 to evaluate the denitrification performance of these technologies. The goal of the project is to expand the list of affordable treatment options available for use in areas where nitrogen is identified as a contaminant of concern. Sewage typically contains high levels of nitrogen. Even with new technologies, on-site sewage (septic) treatment systems generally have limited ability for removing nitrogen in wastewater. This can result in increased nitrate concentrations, or "nitrogen loading" in ground and surface water. And high nitrate levels in drinking water can affect human health. Nitrogen loading is an environmental concern fueling the growth of algae. As algae dies and decays, it consumes oxygen. This process contributes to depleted dissolved oxygen conditions and can harm aquatic life.

The technologies installed have been successful in other parts of the United States in removing high amounts of nitrogen from sewage. Because denitrification processes are temperature dependent, they were chosen to evaluate their effectiveness in Washington’s climate.

The systems evaluated are:

1. A vegetated recirculating gravel filter (VGRF) that is comparable to a recirculating vertical flow constructed wetland.
VRGF overview (PDF) - http://www.doh.wa.gov/Portals/1/Documents/4450/337-117-VRGF.pdf
ETV results (PDF) - http://www.doh.wa.gov/Portals/1/Documents/4400/337-138-VRGF-Final-ETV-Report.pdf

2. A recirculating gravel filter followed by a vegetated denitrifying woodchip bed (RGF+WB).
RGFW overview (PDF) - http://www.doh.wa.gov/Portals/1/Documents/4450/337-116-RGFW.pdf
ETV results (PDF) - http://www.doh.wa.gov/Portals/1/Documents/4400/337-139-VRGF-WB-Final-ETV-Report.pdf

3. An enhanced recirculating gravel filter (ERGF) that is also designed to maximize nitrogen removal efficiencies.
ERGF overview (PDF) - http://www.doh.wa.gov/Portals/1/Documents/4450/337-115-ERGF.pdf
ETV results (PDF) - http://www.doh.wa.gov/Portals/1/Documents/4400/337-140-ERGF-Final-ETV-Report.pdf

The systems were evaluated for 12 months, using the EPA/ETV Protocol for the Verification of Residential Wastewater Treatment Technologies for Nutrient Reduction (http://www.epa.gov/etv/pubs/04_vp_nutrient.pdf). Results show both the vegetated recirculating gravel filter and the recirculating gravel filter with the woodchip bed systems are reliable and effective in removing nitrogen from wastewater.

WA is developing standards and guidance for the use of these two treatment technologies. Lynn Schneider will discuss the grant process, the results and the development of standards and guidance. Full documentation can be viewed at http://www.doh.wa.gov/CommunityandEnvironment/Shellfish/EPAGrants/Denitrification.aspx

Regulatory Round Table Review Series - First Event

MICC bacteriaOn January 15, 2014 WasteWater Education 501(c)3 invited Environmental Health Regulatory Staff to participate in the first online hosted Regulatory Round Table Review session. (There is no charge for EH personnel)

"Understanding Microbial Induced Corrosion in precast concrete."

This in-depth 2 hour discussion is designed for those in EH Departments who inspect concrete wastewater components: those who may want more information about what to look for and those who have experience of "MICC" to share.

To Register, or confirm a prior registration, for the Regulatory Round Table Review Series please email to info@wastewatereducation.org

sub surface drip systemRecordings available here for September 11,12,13, 2012:
A Regulators Guide to Subsurface Drip Dispersal (SDD) Systems
Presenter: Rodney Ruskin. CEO Geoflow, Inc
This training was underwritten by Geoflow and provided at no cost to regulators -
a complimentary donation would be appreciated to enable us to present future such professional training events at no charge.

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This is your opportunity to meet and discuss cutting edge wastewater technology options with leaders in this field.

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