OHA Drinking Water Services
OR41
PWS ID: 94651 ---- HECETA LIGHT STATION B/B
GW/GWUDI Source Detail

Non-purchased Groundwater/GWUDI Sources:
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SRC-AB:  WELL #2
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: Unknown   Surface water within 500 feet: Unknown
Construction adequate?: Unknown   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Unknown   Data last updated:
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Unknown
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-AA:  WELL
GW, Inactive, Emergency ---- Operating Period Unknown
Disinfection:  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: No
Construction adequate?: Yes   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 10/24/2019
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 8/1/2019 - 11/30/2020
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		1
0
0		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 2
1
0		 2
0
0		 6
6
5		 2
2
0		 1
0
0		 20
9
5
Outcome/Determination:  E. coli Confirmed
No historic GWUDI data were found.
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