OHA Drinking Water Services
OR41
PWS ID: 00582 ---- OAKRIDGE, CITY OF
GW/GWUDI Source Detail

Non-purchased Groundwater/GWUDI Sources:
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SRC-AA:  WELL #1
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: Yes
Construction adequate?: No - Inappropriate Materials   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 02/13/2008
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Complete

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 01/01/2010 - 12/31/2010
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		0
-
-		1
0
0		2
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		13
0
0
Outcome/Determination:  Low Risk
No historic GWUDI data were found.
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SRC-AB:  WELL #2
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: Yes
Construction adequate?: Yes   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 02/13/2008
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Complete

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 01/01/2010 - 02/29/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		4
2
0		3
0
0		1
0
0		2
0
0		2
0
0		2
1
0		2
0
0		3
1
1		6
3
1		2
0
0		2
0
0		2
1
0		31
8
2
Outcome/Determination:  E. coli Confirmed
No historic GWUDI data were found.
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SRC-AC:  WELL #4
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: Yes
Construction adequate?: Yes   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 02/13/2008
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Complete

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 01/01/2010 - 12/31/2010
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		1
0
0		0
-
-		0
-
-		2
0
0		1
0
0		1
0
0		1
0
0		0
-
-		1
0
0		1
0
0		1
0
0		1
0
0		10
0
0
Outcome/Determination:  Low Risk
No historic GWUDI data were found.
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SRC-AE:  WELL #6
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: Yes
Construction adequate?: Yes   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 02/13/2008
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Complete

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 01/01/2010 - 12/31/2010
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		0
-
-		1
0
0		1
0
0		0
-
-		1
0
0		0
-
-		1
1
0		1
0
0		1
0
0		1
0
0		0
-
-		1
0
0		8
1
0
Outcome/Determination:  Low Risk
No historic GWUDI data were found.
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SRC-AD:  WELL #5
GW, Inactive (Disconnected), Other ---- Operating Period Unknown
Disinfection:  GWR 4-LOG VIRUS COMPLIANCE MON
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: 02/13/2008
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Complete

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 01/01/2010 - 10/01/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		0
-
-		0
-
-		0
-
-		0
-
-		0
-
-		0
-
-		0
-
-		0
-
-		0
-
-		0
-
-		0
-
-		0
-
-		0
-
-
Outcome/Determination:  N/A
No historic GWUDI data were found.
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