OHA Drinking Water Services
OR41
PWS ID: 91830 ---- LONDON ELEMENTARY SD 45J3
GW/GWUDI Source Detail

Non-purchased Groundwater/GWUDI Sources:
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SRC-AA:  WELL
GW, Active, Seasonal ---- Operating Period: Sep 5 - Jun 10
Disinfection:  RESID. MAINT. HYPOCHLORINATION
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: 07/30/2012
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Pending
No monthly assessment monitoring schedule found.

Historic GWUDI Monitoring Data
Sample Date Result
10/31/2007 TC+
09/30/2007 Absent
08/31/2007 TC+
07/31/2007 Absent
06/30/2007 Absent
05/31/2007 Absent
04/30/2007 Absent
03/31/2007 Absent
02/28/2007 TC+
01/31/2007 Absent
12/31/2006 Absent
11/30/2006 TC+
10/31/2006 TC+
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More information for this water system: SDWIS ID 1041
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