OHA Drinking Water Services
OR41
PWS ID: 00403 ---- IRRIGON, CITY OF
GW/GWUDI Source Detail

Non-purchased Groundwater/GWUDI Sources:
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SRC-BA:  WELL #3
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  RESID. MAINT. GAS CHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: Yes
Construction adequate?: Yes   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 7/5/2011
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 8/1/2015 - 12/31/2016
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		1
0
0		 2
2
0		 1
1
0		 1
1
0		 1
1
0		 1
0
0		 1
0
0		 1
1
0		 1
1
0		 1
1
0		 1
0
0		 1
0
0		 13
8
0
Outcome/Determination:  Chronic Total Coliform
No historic GWUDI data were found.
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SRC-BB:  WELL #4
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  RESID. MAINT. GAS CHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: Yes
Construction adequate?: Yes   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 7/5/2011
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 8/1/2015 - 12/31/2016
 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		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 12
0
0
Outcome/Determination:  Low Risk
No historic GWUDI data were found.
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SRC-AA:  DEEP WELL
GW, Inactive (Disconnected), Emergency ---- Operating Period Unknown
Disinfection: None
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: Unknown   Data last updated: 6/16/2010
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-AB:  SHALLOW WELL
GW, Inactive (Permanently Abandoned), Emergency ---- Operating Period Unknown
Disinfection: None
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: Unknown   Data last updated: 6/16/2010
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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