OHA Drinking Water Services
OR41
PWS ID: 00922 ---- VERNONIA, CITY OF
System Information     Schedule Counts
Status:  Active
System Type:  Community
Population Served:  2,100
 Active:  16
Inactive:  0
Expired:  13  Show Expired

Routine Sampling Schedules For Chemicals
Facility
ID
Name Status Test Group Samples
Required
   Sampling
Interval
Start End    Notes
CH-A COMMON HEADER FOR WTP-AATOTAL ORGANIC CARBON1  Quarterly10/01/2022Open
DIST-A Distribution SystemAASBESTOS, DIST1  9 Years01/01/2002Open
DIST-A Distribution SystemADBP2 HAA5 ONLY1  Yearly01/01/2015OpenSample at Knott St in June
DIST-A Distribution SystemADBP2 TTHM ONLY1  Yearly01/01/2015OpenSample at Nehalem St in September
DIST-A Distribution SystemALEAD & COPPER10  3 Years01/01/2014OpenSample between June 1st and Sept 30th
EP-A EP FOR ROCK CREEKAARSENIC1  9 Years01/01/2011OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR ROCK CREEKAIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR ROCK CREEKANITRATE1  Yearly01/01/2002Open
EP-A EP FOR ROCK CREEKANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR ROCK CREEKAPFAS1  Quarterly01/01/2023OpenInitial monitoring - 4 quarters only
EP-A EP FOR ROCK CREEKARAD - GROSS ALPHA1  9 Years01/01/2008Open
EP-A EP FOR ROCK CREEKARAD - RADIUM 226/2281  9 Years01/01/2008Open
EP-A EP FOR ROCK CREEKARAD - URANIUM1  9 Years01/01/2008Open
EP-A EP FOR ROCK CREEKASOC1  3 Years01/01/2002Open
EP-A EP FOR ROCK CREEKAVOLATILE ORGANICS1  Yearly01/01/2002Open
WTP-A TP FOR ROCK CREEKATOTAL ORGANIC CARBON1  Quarterly01/01/2015Open