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TECHNICAL PAPERS

Escherichia Coli Removal in Biochar-Augmented BioFilter
Effect of Infiltration Rate, Initial Bacterial Concentration, Biochar Particle Size, and Presence of Compost
Sanjay K. Mohanty and Alexandria B. Boehm

Effect of Weathering on Mobilization of Biochar Particles and
Bacterial Removal in a Stormwater BioFilter

To improve bacterial removal, a traditional stormwater biofilter can be augmented with biochar, but it is
unknown whether bacterial removal remains consistent as the biochar weathers during intermittent
exposure to stormwater under dry-wet and freeze-thaw cycles.
Sanjay K. Mohanty and Alexandria B. Boehm

Port of Port Townsend - Level 3 Response & Biochar Pilot Project
Al Cairns and Myles Gray
Managing Stormwater in the Northwest
Tacoma, WA, March 5th, 2014

Zinc Sources in California Urban Runoff
Prepared by TDC Environmental, LLC, February 2015
This report was prepared for the California Stormwater Quality Association (CASQA) under the supervision of CASQA’s Watershed Management & Impaired Waters Subcommittee. It is a component of CASQA’s Source Control Initiative which seeks to address stormwater and urban runoff pollutants at their sources.

EPA Issues New Multi-Sector General Permit for Stormwater Discharges
by Meline MacCurdy (7/1/15)
EPA recently issued a new multi-sector general permit under the Clean Water Act (“CWA”) governing stormwater discharges from industrial facilities.[1] The new permit is available to twenty-nine sectors of industry in jurisdictions where EPA is the permitting authority.[2] The permit has several key changes, including requiring disclosures in notices of intent . . .
See more at: http://www.martenlaw.com/newsletter/20150701-multi-sector-general-permit-stormwater-discharges#sthash.Wz0MTW7G.dpuf

The Soil & Water Connection – A Watershed Manager’s Guide To Organics
Composting Council – Research & Education Foundation

Effects of Water Hardness, Alkalinity, and Dissolved Organic Carbon on the
Toxicity of Copper To the Lateral Line of Developing Fish

Tiffany Linbo, David Baldwin, Jenifer McIntyre, and Nathaniel Scholz
This technical research paper was accepted in 7 January 2009 by NOAA and the University of Washington. This study investigates the influence of different water chemistry parameters on larval zebrafish. These parameters are shown in a set of tables – Copper Toxicity vs Water Hardness, Sodium, and Dissolved Organic Carbon (Figure 1).

Chemosensory Deprivation in Juvenile Coho Salmon Exposed to
Dissolved Copper Under Varying Water Chemistry Conditions

Jenifer McIntyre, David Baldwin, James Meador, and Nathaniel Scholz
This technical research paper was accepted in 26 November 2007 by the University of Washington and NOAA. The study investigates the impacts of copper in freshwaters with different chemical properties. Streams in the Puget Sound, Willamette, Yakima, and Sacramento basins were analyzed and reported (Figure 2).

Bioavailability and Acute Toxicity of Copper to Rainbow Trout (Ohcorhynchus mykiss)
in the Presence of Organic Acids Simulating Natural Dissolved Organic Carbon

J.C.A. Marr, J. Lipton, D. Cacela, J.A. Hansen, J.S. Meyer, and H.L. Bergman
This technical research paper was accepted in 2 June 1998 by NOAA, US Department of Agriculture/Forest Service, and the State of Idaho. This study evaluated the copper bioavailability and toxicity to early life stage rainbow trout. There is a very interesting table showing survival rates versus copper concentration versus DOC concentration (Figure 4).

Peat-Based Sorption Media; A New Approach For Removing Heavy Metals From Stormwater
Paul Eger, Doug Green, and John Wagner
Diamond Chrome Plating technical paper published by American Peat Technology.
Details 85.3% removal of zinc.

Cleanup Using Compost To Treat Contaminated Water
Elizabeth Case – The Oregonian
This newspaper article is about how a newspaper mill on the Willamette River being dismantled was able to use compost to purify its stormwater.

5,000 gallon Home Rainwater Collection System
Jeffrey Pettey
When extensively remodeling my home, I decided to use my expertise to install a green water system that will supply the toilets, the laundry washers, and the hose bids. The collection tank is under the house with 5 levels of passive separations before entering the main holding tank. If the tank runs dry (in late August, early September), the city water supply automatically steps in. This process has worked flawlessly for over 5 years.

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