OHA Drinking Water Services
OR41
PWS ID: 91546 ---- THE STATION
GW/GWUDI Source Detail

Non-purchased Groundwater/GWUDI Sources:
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SRC-AB:  WELL #2
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  ULTRAVIOLET RADIATION
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: 12/9/2019
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 11/1/2019 - 12/31/2019
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 1
1
0		 1
1
0
Outcome/Determination:  N/A
No historic GWUDI data were found.
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SRC-AA:  WELL #1
GW, Inactive (Permanently Abandoned), Other ---- Operating Period Unknown
Disinfection:  ULTRAVIOLET RADIATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: Yes
Construction adequate?: No - Seal Missing or Unknown   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 10/17/2019
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 2/1/2019 - 8/31/2019
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		0
-
-		 1
1
0		 6
6
2		 1
0
0		 2
0
0		 1
0
0		 1
0
0		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 12
7
2
Outcome/Determination:  E. coli Confirmed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 1/1/2010 - 5/31/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		5
0
0		 0
-
-		 0
-
-		 0
-
-		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 1
1
1		 1
1
0		 1
1
0		 1
1
1		 13
4
2
Outcome/Determination:  Chronic Total Coliform

Historic GWUDI Monitoring Data
Sample Date Result
5/31/2007 Absent
3/31/2007 Absent
2/28/2007 TC+
1/31/2007 Absent
12/31/2006 TC+
11/30/2006 TC+
10/31/2006 Absent
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