OHA Drinking Water Services
OR41
PWS ID: 94562 ---- LAMB WESTON
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:  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: No
Construction adequate?: No - Inappropriate Materials   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 04/07/2017
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 03/01/2020 - 02/28/2021
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		1
0
0		1
0
0		1
0
0		2
1
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		14
1
0
Outcome/Determination:  Low Risk

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 08/01/2015 - 07/31/2016
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		1
0
0		1
1
0		1
0
0		1
0
0		1
0
0		1
0
0		1
0
0		1
1
0		1
1
0		2
0
0		1
0
0		1
0
0		13
3
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:  RESID. MAINT. HYPOCHLORINATION
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: 04/07/2017
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 03/01/2020 - 02/28/2021
 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		2
1
0		1
0
0		1
0
0		1
0
0		14
1
0
Outcome/Determination:  Low Risk

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 08/01/2015 - 07/31/2016
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		1
0
0		6
6
1		1
0
0		1
1
0		1
0
0		1
0
0		1
1
0		1
1
0		1
0
0		2
2
0		1
1
0		1
1
0		18
13
1
Outcome/Determination:  Chronic Total Coliform
No historic GWUDI data were found.
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SRC-AC:  WELL #3
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: 04/07/2017
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 08/01/2015 - 07/31/2016
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+		1
0
0		1
1
0		1
0
0		1
0
0		1
0
0		1
0
0		1
0
0		1
0
0		1
1
0		2
1
0		1
0
0		1
1
0		13
4
0
Outcome/Determination:  Chronic Total Coliform
No historic GWUDI data were found.
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