Staff Guidance for Treatment and Monitoring of Pathogens at Public Water Systems
Find guidance for surface water and groundwater requirements to treat and monitor pathogens at public water systems.
Meeting Treatment Technique Requirements for Cryptosporidium, Giardia, and Viruses / PDF 
This staff guidance document provides public water systems with information on pathogen-removal criteria when using Reverse Osmosis (RO) membranes to treat surface water, groundwater under the influence of surface water, or rain water.
This staff guidance document provides public water systems with information on pathogen-removal criteria when using Reverse Osmosis (RO) membranes to treat surface water, groundwater under the influence of surface water, or rain water.
Required Bacteriological Samples When a Well Pump is Repaired or Replaced / PDF
This staff guidance provides information on the required sampling after a well pump has been repaired or replaced.
This staff guidance provides information on the required sampling after a well pump has been repaired or replaced.