OHA Drinking Water Services
OR41
PWS ID: 00368 ---- HELIX, CITY OF
System Information     Schedule Counts
Status:  ACTIVE
System Type:  Community
Population Served:  190		 Active:  11     Show Only Active
Inactive:  0
Expired:  4

Routine Sampling Schedules For Chemicals
Facility
ID		 Name Status Test Group Samples
Required		    Sampling
Interval		 Start End    Notes
DIST-A DISTRIBUTION SYSTEMALEAD & COPPER5  3 Years01/01/2002OpenCollect samples between June 1 and September 30, from cold water, drinking water taps.
DIST-A DISTRIBUTION SYSTEMASTAGE 2 DBP1  3 Years01/01/2023OpenCollect samples at Columbia/Main in July
EP-A EP FOR WELL #4AARSENIC1  9 Years01/01/2014OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR WELL #4AIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR WELL #4ANITRATE1  Yearly01/01/2002Open
EP-A EP FOR WELL #4ANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR WELL #4ARAD - GROSS ALPHA1  9 Years01/01/2008Open
EP-A EP FOR WELL #4ARAD - RADIUM 226/2281  9 Years01/01/2023Open
EP-A EP FOR WELL #4ARAD - URANIUM1  9 Years01/01/2008Open
EP-A EP FOR WELL #4ASOC1  3 Years01/01/2002Open
EP-A EP FOR WELL #4AVOLATILE ORGANICS1  3 Years01/01/2002Open
Expired Schedules
DIST-ADISTRIBUTION SYSTEMASTAGE 2 DBP2  Yearly01/01/202212/31/2022Collect two dual samples sets in july 2022 for IDSE purposes, one at the location with highest expected HAA5 and one at the location expected to have highest TTHM concentrations.
EP-AEP FOR WELL #4AARSENIC1  3 Years01/01/200212/31/2013
EP-AEP FOR WELL #4ARAD - RADIUM 226/2281  6 Years01/01/201712/31/2022
EP-AEP FOR WELL #4ARAD - RADIUM 226/2281  9 Years01/01/200812/31/2016

More information for this water system: SDWIS ID 3728
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