OHA Drinking Water Services
OR41
PWS ID: 00399 ---- INDEPENDENCE WATER SYSTEM
GW/GWUDI Source Detail

Non-purchased Groundwater/GWUDI Sources:
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SRC-AE:  WELL #5 (SOUTH)
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  RESID. MAINT. GAS CHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   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: 06/21/2010
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-AF:  WELL #1
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  RESID. MAINT. GAS CHLORINATION
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: 02/16/2011
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 05/01/2011 - 05/31/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		1
0
0		1
0
0		1
0
0		1
0
0		2
0
0		1
0
0		1
0
0		1
0
0		1
0
0		2
0
0		1
0
0		1
0
0		14
0
0
Outcome/Determination:  Low Risk
No historic GWUDI data were found.
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SRC-AG:  WELL #2
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  RESID. MAINT. GAS CHLORINATION
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: 02/16/2011
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 05/01/2011 - 05/31/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		1
0
0		1
0
0		1
0
0		1
0
0		2
0
0		1
0
0		1
0
0		1
0
0		1
0
0		1
0
0		1
0
0		1
0
0		13
0
0
Outcome/Determination:  Low Risk
No historic GWUDI data were found.
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SRC-AH:  WELL #3
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  RESID. MAINT. GAS CHLORINATION
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: 02/16/2011
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 05/01/2011 - 05/31/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		1
0
0		1
0
0		1
0
0		1
0
0		2
0
0		1
0
0		1
0
0		1
0
0		1
0
0		1
0
0		1
0
0		1
0
0		13
0
0
Outcome/Determination:  Low Risk
No historic GWUDI data were found.
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SRC-BA:  POLK STREET WELL #1 (1957) *
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  GWR 4-LOG VIRUS COMPLIANCE MON;  GASEOUS CHLORINATION, PRE
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: 07/14/2022
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Complete

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 01/01/2010 - 05/31/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		2
2
0		1
1
0		1
0
0		1
0
0		2
0
0		1
0
0		1
0
0		1
0
0		2
1
0		0
-
-		1
0
0		4
3
0		17
7
0
Outcome/Determination:  Chronic Total Coliform
No historic GWUDI data were found.
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SRC-BB:  POLK STREET WELL #2 (2001)
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
Disinfection:  GWR 4-LOG VIRUS COMPLIANCE MON;  GASEOUS CHLORINATION, PRE
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   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: 08/22/2006
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-BC:  RIVER DRIVE WELL (2000)
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
Disinfection:  GWR 4-LOG VIRUS COMPLIANCE MON;  GASEOUS CHLORINATION, PRE
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   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: 08/12/2003
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-BD:  POLK ST WELL #3
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  GWR 4-LOG VIRUS COMPLIANCE MON;  GASEOUS CHLORINATION, PRE
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   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: 03/31/2022
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-AA:  WELL #1 (OLD)
GW, Inactive (Abandoned), Other ---- Operating Period: Jan 1 - Dec 31
Disinfection:  RESID. MAINT. GAS CHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: No
Construction adequate?: Unknown - Seal Missing or Unknown   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 06/16/2010
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-AB:  WELL #2 (OLD)
GW, Inactive (Abandoned), Other ---- Operating Period: Jan 1 - Dec 31
Disinfection:  RESID. MAINT. GAS CHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: No
Construction adequate?: Unknown - Seal Missing or Unknown   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 02/28/2006
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-AC:  WELL #3 (OLD)
GW, Inactive (Abandoned), Other ---- Operating Period: Jan 1 - Dec 31
Disinfection:  RESID. MAINT. GAS CHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: No
Construction adequate?: Unknown - Seal Missing or Unknown   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 02/28/2006
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-AD:  WELL #4 (SOUTH)
GW, Inactive, Emergency ---- Operating Period Unknown
Disinfection:  RESID. MAINT. GAS CHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   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: 02/28/2006
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-CA:  PARK STREET WELL
GW, Inactive (Disconnected), Other ---- Operating Period Unknown
Disinfection: None
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: 04/09/2012
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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