OHA Drinking Water Services
Introduction
Data Search Options
Water System Search
DWS Home
DWS Rules
Maximum Residual Disinfection Level (MRDL) Samples
Search by water system name or number:
You can enter all or part of the water system's name. Only exact matches will be returned.
Information for all water systems:
Water System Inventory
Water System Surveys
Outstanding Performers
Treatment Plant Inspections
Treatment
Plan Reviews
Alerts
Violations
Compliance & Enforcement
Deficiencies
System Scores
Exceedances
Public Notices
Service Lines
Water Advisories
Contact Reports
Cyanotoxins
PFAS
Post-wildfire VOCs
Fluoride
Certification List
DW Source Protection
Main menu:
Introduction
Data Search Options
Water System Search
DWS Home
DWS Rules
Need help?
Email Drinking Water Services
for assistance.
Staff/Partner Login
