Environmental Protection
- Webpage
Additional sources of WET program information
EPA WET Test Methods and toxicity information Test methods designed specifically for measuring whole effluent toxicity (WET) have been codified at 40 CFR part 136 [60 FR 53529; Oct. 16, 1995]. Three EPA WET Methods Manuals (two freshwater…
- Webpage
Consultants with TRE experience in Wisconsin
A "toxicity reduction evaluation" (TRE) is a study intended to determine those actions necessary to remove toxicity. A TRE may identify a simple solution such as improved housekeeping procedures or require a more extensive investigation to identify…
- Webpage
WET laboratory certification
All laboratories performing WET testing for WPDES permit compliance are required to be certified or registered under ch. NR 149, Wis. Adm. Code. Because high quality data is important when making sound environmental decisions, the laboratory…
- Webpage
The Whole Effluent Toxicity (WET) Program
Whole effluent toxicity (WET) tests are used, in addition to chemical-specific testing, to measure, predict and control the discharge of materials that may be harmful to aquatic life. Recognizing that no single test or organism can be expected to…
- Webpage
Safety and Ebola hemorrhagic fever resources
The DNR has received questions about health risks to wastewater treatment plant/sanitary sewer workers from sewage containing the Ebola virus. There is very little research on the fate and transport of the Ebola virus in wastewater collection…
- Webpage
Wastewater Systems Security
Anticipating problems can prevent them. In an emergency, first responders will come to help. Eighty percent of Wisconsin's fire departments are staffed with volunteers. Protecting their safety by planning ahead is important. Chain-of-command…
- Webpage
Vulnerability Assessments
Vulnerability Assessments are a good way to determine what types of security measures meet each wastewater system's needs. Vulnerabilities may consist of flaws in security procedures, software, internal system controls, transmission of data, or the…
- Webpage
Plan Review Procedures for Large Septage Storage Facilities
OverviewSeptage is defined as the wastewater or contents of septic tanks, holding tanks, dosing chambers, grease interceptors, seepage beds, seepage pits, seepage trenches, privies or portable restrooms (reference s. NR 113.03(55), Wis. Adm. Code).…
- Webpage
Security training and education
The U.S. EPA sponsors workshops on using the VSAT™ (Vulnerability Self-Assessment Tool) computer software program through the Water Environment Federation [exit DNR]. These workshops are free, and wastewater operators who live more than 100 miles…