OHA Drinking Water Services

PWS ID: 00304 ---- ALDERWOOD WATER DEV CO
LRAAs and OELs

LRAA = Locational running annual average; OEL = Operational evaluation level. Learn about OELs here.
Averages are subject to change as new data is taken into consideration.

Monitoring
Period
Last
Sample
Sample
Point
Location
 
TTHM LRAA
MCL = 0.080
TTHM
OEL
HAA5 LRAA
MCL = 0.060
HAA5
OEL
4Q2021 Nov 02, 2021 2DBP-01 5600 ALDER CT 0.032 0.035 0.017 0.014
 
3Q2021 Aug 03, 2021 2DBP-01 5600 ALDER CT 0.028 0.028 0.022 0.017
 
2Q2021 May 04, 2021 2DBP-01 5600 ALDER CT 0.031 0.030 0.023 0.024
 
1Q2021 Feb 02, 2021 2DBP-01 5600 ALDER CT 0.032 0.029 0.024 0.023
 
4Q2020 Nov 17, 2020 2DBP-01 5600 ALDER CT 0.033 0.033 0.024 0.026
 
3Q2020 Aug 04, 2020 2DBP-01 5600 ALDER CT 0.032 0.035 0.020 0.021
 
2Q2020 May 12, 2020 2DBP-01 5600 ALDER CT 0.035 0.032 0.021 0.021
 
1Q2020 Feb 04, 2020 2DBP-01 5600 ALDER CT 0.040 0.033 0.021 0.020
 
4Q2019 Nov 05, 2019 2DBP-01 5600 ALDER CT 0.033 0.039 0.016 0.019
 
3Q2019 Aug 22, 2019 2DBP-01 5600 ALDER CT 0.032 0.038 0.016 0.019
 
2Q2019 May 02, 2019 2DBP-01 5600 ALDER CT 0.029 0.034 0.016 0.016
 
1Q2019 Feb 05, 2019 2DBP-01 5600 ALDER CT 0.026 0.020 0.016 0.013
 
4Q2018 Nov 13, 2018 2DBP-01 5600 ALDER CT 0.035 0.032 0.024 0.019
 
3Q2018 Aug 07, 2018 2DBP-01 5600 ALDER CT 0.030 0.039 0.021 0.028
 
2Q2018 May 09, 2018 2DBP-01 5600 ALDER CT 0.024 0.031 0.018 0.022
 
1Q2018 Feb 06, 2018 2DBP-01 5600 ALDER CT 0.024 0.023 0.020 0.019
 
4Q2017 Nov 07, 2017 2DBP-01 5600 ALDER CT 0.027 0.016 0.025 0.017
 
3Q2017 Aug 10, 2017 2DBP-01 5600 ALDER CT 0.035 0.030 0.031 0.028
 
2Q2017 May 02, 2017 2DBP-01 5600 ALDER CT 0.044 0.044 0.034 0.037
 
1Q2017 Feb 07, 2017 2DBP-01 5600 ALDER CT 0.048 0.046 0.036 0.037
 
4Q2016 Nov 08, 2016 2DBP-01 5600 ALDER CT 0.045 0.032 0.031
 
3Q2016 Sep 20, 2016 2DBP-01 5600 ALDER CT 0.041 0.044 0.032 0.032
 
2Q2016 May 27, 2016 2DBP-01 5600 ALDER CT 0.040 0.044 0.030 0.037
 
1Q2016 Feb 02, 2016 2DBP-01 5600 ALDER CT 0.035 0.036 0.026 0.028
 
4Q2015 Nov 20, 2015 2DBP-01 5600 ALDER CT 0.033 0.031 0.022 0.024
 
3Q2015 Aug 25, 2015 2DBP-01 5600 ALDER CT 0.038 0.038 0.018 0.018
 
2Q2015 2DBP-01 5600 ALDER CT
 
1Q2015 2DBP-01 5600 ALDER CT
 



For further information on this public water system, click on the area of interest below:
System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins :: PFAS
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 3954