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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	105388889
PWS Name	MT. VISTA - DUNGENESS GOLF COURSE
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	517
County Served

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
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	33	Returned to Compliance	01-APR-2025	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	32	Returned to Compliance	01-JUL-2023	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	43	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	42	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	51	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	50	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	45	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	44	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	40	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	41	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	46	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	47	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	48	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	49	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	36	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	37	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	38	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	39	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	18	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	19	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	20	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	21	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	17	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	16	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	15	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	14	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	13	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	12	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	11	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	10	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	9	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	8	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	7	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	6	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	5	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	4	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	3	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	27	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	26	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	2	Returned to Compliance	01-JAN-2017	31-DEC-2017	No

1 - 41 of 41

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
4	33	EOX	Federal Compliance achieved	07-APR-2025	Region	LCN was submitted late. RTCed. -CJA 5/7/25
3	32	EOX	Federal Compliance achieved	30-NOV-2023	Region	Lead and copper results received for second six months of 2023. -CJA 1/10/2024
2	27	EOX	Federal Compliance achieved	15-JUN-2020	Region	Collected and analyzed in 2019, but not reported until February 2020. -CJA 6/15/20
2	26	EOX	Federal Compliance achieved	15-JUN-2020	Region	Collected and analyzed in 2019, but not reported until February 2020. -CJA 6/15/20
1	6	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	7	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	8	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	9	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	10	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	11	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	12	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	13	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	14	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	15	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	16	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	17	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	18	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	19	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	20	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	21	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	5	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	4	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	3	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	1	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19
1	2	EOX	Federal Compliance achieved	15-FEB-2019	Region	Sampled in 2018. CJA 2/15/19

1 - 25 of 25

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL #3	1353	Yes	Well	Ground water	Permanent	Active
OLD WELL	1393	Yes	Well	Ground water	Permanent	Inactive
WELL #2	1354	Yes	Well	Ground water	Permanent	Active
MT. VISTA - DUNGENESS DISTRIBUTION	1358	No	Distribution System/Zone	-	-	Active
PUMPHOUSE	1355	No	Pump Facility	-	-	Active
PRESSURE TANK #1	1356	No	Storage	-	-	Active
PRESSURE TANK #2	1357	No	Storage	-	-	Active
TREATMENT PLANT	1435	No	Treatment Plant	-	-	Active

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT	1435	Hypochlorination, Post	Disinfection

1 - 1 of 1

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.

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