OHA Drinking Water Services
OR41
PWS ID: 00506 ---- NEAHKAHNIE WATER DISTRICT
GW/GWUDI Source Detail

Non-purchased Groundwater/GWUDI Sources:
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SRC-AA:  SPRING #1, (UPPER SPRING)
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
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: 02/22/2012
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Pending
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-AB:  SPRING #2
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
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: 02/22/2012
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Pending
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-AC:  SPRING #3 (LOWER SPRING)
GW, Active, Permanent ---- 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: 02/22/2012
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
1
0		1
0
0		1
0
0		1
0
0		2
1
0		1
1
0		1
1
0		1
0
0		1
0
0		1
0
0		1
1
0		1
1
0		13
6
0
Outcome/Determination:  Chronic Total Coliform
No historic GWUDI data were found.
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SRC-BA:  PIRATES SPRING
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
Disinfection:  GWR 4-LOG VIRUS COMPLIANCE MON
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: 02/22/2012
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Complete

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 05/01/2011 - 01/23/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		6
6
3		0
-
-		0
-
-		0
-
-		1
0
0		1
1
0		1
0
0		1
1
0		1
1
0		1
1
0		1
1
0		1
1
0		14
12
3
Outcome/Determination:  E. coli Confirmed
No historic GWUDI data were found.
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SRC-CA:  SPRING #2 (EMERGENCY)
GW, Inactive (Abandoned), 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: 08/16/2005
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-DA:  SPRING #3 (LOWER SPRING)
GW, Inactive (Abandoned), Other ---- Operating Period Unknown
Disinfection: None
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: Unknown
Construction adequate?: Unknown   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 05/20/2010
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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