Five-Mile Policy
These are general guidelines for conducting stream studies for wastewater discharges proposed within five miles upstream from public water supply sources or for the location of public water supply intakes within five miles downstream from wastewater discharges.

Continuous-Recording Turbidimeter Protocol
The guidelines in this document, effective since September 2000, are for using online continuous recording turbidimeters for turbidity compliance.

General Design Criteria
Developed in 1990, these general design criteria for surface water and groundwater systems were adapted for "Ten State Standards."

Required Sampling for Drinking Water Treatment Plant Design Projects
This guidance on required sampling for design projects was originally created May 1997. 

Radionuclides Memo
This information was sent to community public water systems Jan. 30, 2002. The Radionuclides Rule became effective on Dec. 8, 2003.

EPA Technical Guides
These guidance manuals support the Interim Enhanced Surface Water Treatment Rule and the Stage 1 Disinfectants/Disinfection Byproducts Rule.

Emergency Alternate Water Source
Originally issued in June 1999 because of the extreme drought, this information was sent to all public water systems in case an alternate source of raw water had to be used. 

Ground Water Under Direct Influence (GWUDI) Determinations 
Guidance for determining source water as Ground Water Under Direct Influence (GWUDI).