Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WA5352000
PWS Name	Mattawa City of
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	5370
County Served	Grant

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
MCL	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3135353	Returned to Compliance	01-JUN-2024	30-JUN-2024	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2362550	Returned to Compliance	01-JUL-2023	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1640296	Returned to Compliance	01-JUL-2016	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	19598632378	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	19598632380	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	16477391045	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	16477391041	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1427900	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	16477391036	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	16477391035	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	16477391025	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	16477391024	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	16477391015	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	16477391010	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	16477391005	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	16477391085	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	16477391075	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	16477391074	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	19598632996	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	19598632992	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	19598632991	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	19598632990	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	19598632989	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	19598632987	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	19598632985	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	19598632984	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	19598632983	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	19598632982	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	19598632981	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	19598632980	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	19598632979	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	19598632977	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	19598632976	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	19598632969	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	19598632968	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	19598632964	Known	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	16477391020	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1129611	Returned to Compliance	01-JUL-2011	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1340627	Returned to Compliance	01-JAN-2011	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1152942	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1223175	Returned to Compliance	01-JAN-2010	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	10319712031	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	10319712040	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	10225551020	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	10332981020	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	10336412306	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	10336412274	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	10225551045	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	10332981045	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	10225551036	Returned to Compliance	01-JAN-2008	31-DEC-2010	No

1 - 50 of 177

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3135353ENF	3135353	SOX	State Compliance achieved	16-JUL-2024	State	-
62550ENF	2362550	SOX	State Compliance achieved	20-SEP-2023	State	-
1947739ENF	07274881005	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391085	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881015	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881020	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881024	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881025	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881035	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881036	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881045	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881074	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881075	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881085	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981005	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981010	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981015	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981020	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981024	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981025	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981035	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981036	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981045	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981074	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981075	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	10332981085	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391005	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391010	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391015	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391020	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391024	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391025	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391035	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391036	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391041	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391045	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391074	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	16477391075	SOX	State Compliance achieved	11-OCT-2017	State	-
1947739ENF	07274881010	SOX	State Compliance achieved	11-OCT-2017	State	-
40296ENF	1640296	SOX	State Compliance achieved	01-DEC-2016	State	-
1627900ENF	1427900	SOX	State Compliance achieved	01-APR-2015	State	-
1340627ENF	1340627	SOX	State Compliance achieved	03-SEP-2014	State	-
1340627ENF	1223175	SOX	State Compliance achieved	03-SEP-2014	State	-
833641ENF	10336412005	SOX	State Compliance achieved	12-AUG-2013	State	-
833641ENF	10336412959	SOX	State Compliance achieved	12-AUG-2013	State	-
833641ENF	10336412015	SOX	State Compliance achieved	12-AUG-2013	State	-
833641ENF	10336412020	SOX	State Compliance achieved	12-AUG-2013	State	-
833641ENF	10336412035	SOX	State Compliance achieved	12-AUG-2013	State	-
833641ENF	10336412037	SOX	State Compliance achieved	12-AUG-2013	State	-
833641ENF	10336412039	SOX	State Compliance achieved	12-AUG-2013	State	-

1 - 50 of 150

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Well #3 - AAJ076	19554	Yes	Well	Ground water	Permanent	Active
Well #2 - ABR240	19553	Yes	Well	Ground water	Seasonal	Active
Well #1- ABR739	19552	Yes	Well	Ground water	Permanent	Inactive
Well #4 (1R) - AAS300	31890	Yes	Well	Ground water	Permanent	Active
WF/ S03, S05	19555	Yes	Well	Ground water	Permanent	Active
Well #2	2899	No	Treatment Plant	-	-	Active
Well #3	2901	No	Treatment Plant	-	-	Active

1 - 7 of 7

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
Well #2	2899	Hypochlorination, Post	Disinfection
Well #3	2901	Gaseous Chlorination, Post	Disinfection

1 - 2 of 2

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Nav Menu

Your Drinking Water Query results from SDWIS Fed Reporting Services

Note

PWS Violation

Violations

Column Actions

Enforcement Actions

Enforcement Actions

Column Actions

PWS Facilities

All Facilities

Column Actions

PWS Treatment Processes

Treatment Processes

Column Actions