On this page:
Read about Oregon Drinking Water Services public notice resources and view templates.
Water System Sampling Points
Turbidity and Surface Water Treatment
Surface Water Monitoring and Reporting Forms for CT and Turbidity Data:
If your system has more than one chlorine injection point, or if you have questions about the PDF or MS Excel versions of the monthly turbidity and surface water monitoring forms, contact the Drinking Water Services technical oversight contact for your system at 971-673-0405.
Preparing a Tracer Study Plan (pdf)
Tracer Study Reporting Form (MS Excel): The template allows a water system to conduct a tracer study to comply with disinfection by determining effective contact time through a storage reservoir.
EPA Quick Reference Guides:
- Conventional or Direct Filtration: PDF -or- MS Excel
- Conventional or Direct Filtration with Verified UV Reactor(s): PDF -or- MS Excel
- Sensor Calibration Form (not required): MS Excel
- Slow Sand, Membrane, Diatomaceous Earth Filtration or Unfiltered: PDF -or- MS Excel
- Cartridge or Bag Filtration: PDF -or- MS Excel
Disinfection Byproducts (DBPs)
Maximum Residual Disinfectant Levels
New sampling requirements have been added for disinfection byproducts and radionuclides that may affect your water system. Please consult the fact sheets below for further information:
Lead and Copper
- Corrosion Control Treatment (i.e., Lead and Copper Rule) Reporting Forms
- Lead and Copper Reporting and Monitoring Guidance: Use Amended Form 141-A for sample site identification for lead and copper sampling. Form submission is only required when there is a change in routine lead/copper sampling locations. The two-page form is available on pages 117‑118 of EPA Lead and Copper Rule Monitoring and Reporting Guidance for Public Water Systems (pdf).
- Lead Testing: EPA's Lead in Drinking Water in Schools and Non-Residential Buildings manual describes how drinking water can be tested for lead and how contamination problems can be corrected. This manual is intended for use by school officials responsible for the water system maintenance and/or safety. Revised technical guidance is available in EPA's 3Ts for Reducing Lead in Drinking Water in Schools (pdf). Visit EPA's website for more information on
Testing Schools and Child Care Centers for Lead in the Drinking Water (including
where to sample, before you sample, how to sample and sample results). For more information about lead poisoning, please contact the Oregon Lead Poisoning Prevention Program (ph. 971-673-0440).