OHA Drinking Water Services
Unresolved Deficiencies

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Source Deficiencies
Other Source
Well Construction Deficiencies
Sanitary seal and casing not watertight *
Does not meet setbacks from hazards
Wellhead not protected from flooding
No raw water sample tap
No treated sample tap (if applicable)
No screen on existing well vent *
Spring Source Deficiencies
Springbox not impervious durable material *
No watertight access hatch/entry *
No screened overflow *
Does not meet setbacks from hazards
No raw water sample tap
No treated sample tap (if applicable)
Treatment Deficiencies/Violations
Other Treatment
Surface Water Treatment Deficiencies
Turbidity standards not met
Turbidimeters not calibrated per manufacturer or at least quarterly
Incorrect location for compliance turbidity monitoring *
If serving >3,300 people, no alarm or auto plant shut off for low chlorine residual
For conventional or direct filtration: No alarm or plant shut off for high turbidity *
For conventional filtration: Settled water not measured daily
For conventional or direct filtration: Turbidity profile not conducted on individual filters at least quarterly
For cartridge filtration: No pressure gauges before and after cartridge filter *
For cartridge filtration: Filters not changed according to manufacturer's recommended pressure differential *
For diatomaceous earth filtration: Body feed not added with influent flow *
For membrane filtration: Turbidimeter not present on each unit
For membrane filtration: Direct integrity testing not done at least daily *
For membrane filtration: Direct integrity testing does not meet rule requirements *
For membrane filtration: Operations and maintenance manual does not include a diagnosis/repair plan
Disinfection Deficiencies/Violations
DPD or EPA approved method not used
Free chlorine residual not maintained
Chlorine not measured & recorded as required
Minimum CT requirement not met all times
No means to adequately determine flow rate on contact chamber effluent line
pH, temperature, and chlorine residual not measured daily at first user
Failure to calculate CT values correctly
No means to adequately determine disinfection contact time under peak flow and minimum storage conditions
Annual raw water sampling past due

UV Disinfection Violations
Bypass around UV system
Lamp sleeve not cleaned
Lamp not replaced per manufacturer
For UV disinfection: No intensity sensor with alarm or shut-off *
Annual raw water sampling past due
Other Treatment Violations
Non-NSF approved chemicals
Corrosion control parameters not met
Distribution System Violations
System pressure < 20 psi
Other Distribution System
Cross Connection
No ordinance or enabling authority (CWS)
Annual summary report not issued (CWS)
Testing records not current (CWS, NTNC, TNC)
No cross connection control specialist (CWS ≥300 connections)
Finished Water Storage Deficiencies
Hatch not locked or adequately secured
Roof and access hatch not watertight *
No flap valve, screen, or equivalent on overflow *
No screened vent *
Other Finished Water Storage
Monitoring & Reporting Violations
Monitoring not current
MCL violations
No coliform sampling plan
Other Monitoring & Reporting
Management & Operations Violations
No operations and maintenance manual
Emergency response plan not completed
Major modifications not approved (plan review)
Master plan not current (≥ 300 con.)
Annual CCR not submitted (CWS)
PNC or out of compliance with AO
Public notice not issued as required
Other Management & Operations
Operator Certification Violations
No certified operator at required level
No protocol for under-certified operator
Other Operator Certification
Other Rule Violations
Other - Bypass around water treatment plant is a cross connection between treated and untreated water *
Other
* Priority Deficiency



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