Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA4910014
PWS Name	ROHNERT PARK, CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	43821
County Served	Sonoma

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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1118442	Returned to Compliance	01-JUL-2021	31-JUL-2021	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	1118443	Returned to Compliance	01-APR-2021	30-JUN-2021	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1118111	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118280	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118253	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118363	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118308	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118335	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118417	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118005	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118114	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118198	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118141	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118169	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118390	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1118226	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118281	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118309	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118336	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118115	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118199	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118006	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118170	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118227	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118391	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118142	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118364	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118418	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1118254	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118284	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118230	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118394	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118421	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118339	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118257	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118173	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118118	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118312	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118202	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118367	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118009	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1118145	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1118285	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1118258	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1118174	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1118395	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1118340	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1118368	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1118313	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1118010	Returned to Compliance	01-JAN-2017	31-DEC-2017	No

1 - 50 of 278

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1118017	1118443	SOX	State Compliance achieved	08-MAR-2024	State	-
1118017	1118442	SOX	State Compliance achieved	08-MAR-2024	State	-
1118014	1118005	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118006	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118009	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118010	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118011	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118012	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118013	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118014	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118016	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118017	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118018	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118019	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118020	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118021	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118022	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118023	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118025	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118026	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118027	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118028	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118029	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118111	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118114	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118115	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118118	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118119	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118120	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118121	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118122	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118123	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118125	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118126	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118127	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118128	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118129	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118130	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118131	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118132	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118134	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118135	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118136	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118137	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118138	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118141	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118142	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118145	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118146	SOX	State Compliance achieved	29-JUN-2018	State	-
1118014	1118147	SOX	State Compliance achieved	29-JUN-2018	State	-

1 - 50 of 278

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CAISSON 01 - WOHLER SITE - TREATED	33303	Yes	Consecutive Connection	Ground water	Other	Inactive
WELL 18 - INACTIVE	11042	Yes	Well	Ground water	Permanent	Inactive
WELL 27 - INACTIVE	10990	Yes	Well	Ground water	Permanent	Inactive
WELL 01	11065	Yes	Well	Ground water	Permanent	Active
WELL 42	11064	Yes	Well	Ground water	Permanent	Active
WELL 06	11056	Yes	Well	Ground water	Permanent	Active
WELL 29	11049	Yes	Well	Ground water	Permanent	Active
WELL 12	11047	Yes	Well	Ground water	Permanent	Active
WELL 22	11045	Yes	Well	Ground water	Permanent	Active
WELL 21	11044	Yes	Well	Ground water	Permanent	Active
WELL 16	11041	Yes	Well	Ground water	Permanent	Active
WELL 02	11039	Yes	Well	Ground water	Permanent	Active
WELL 13	11038	Yes	Well	Ground water	Permanent	Active
WELL 05	11037	Yes	Well	Ground water	Permanent	Active
WELL 11	11036	Yes	Well	Ground water	Permanent	Active
WELL 10	11035	Yes	Well	Ground water	Permanent	Active
WELL 09	11034	Yes	Well	Ground water	Permanent	Active
WELL 08A	11033	Yes	Well	Ground water	Permanent	Active
WELL 08	11032	Yes	Well	Ground water	Permanent	Active
WELL 07	11031	Yes	Well	Ground water	Permanent	Active
WELL 14	11029	Yes	Well	Ground water	Permanent	Active
WELL 30	10999	Yes	Well	Ground water	Permanent	Active
WELL 41	10943	Yes	Well	Ground water	Permanent	Active
WELL 40	10942	Yes	Well	Ground water	Permanent	Active
WELL 39	10941	Yes	Well	Ground water	Permanent	Active
WELL 35	10940	Yes	Well	Ground water	Permanent	Active
WELL 34	10939	Yes	Well	Ground water	Permanent	Active
WELL 33	10938	Yes	Well	Ground water	Permanent	Active
WELL 31	10937	Yes	Well	Ground water	Permanent	Active
WELL 38 - ABANDONED	7646	Yes	Well	Ground water	Other	Inactive
WELL 36 - ABANDONED	7645	Yes	Well	Ground water	Other	Inactive
WELL 32 - ABANDONED	7642	Yes	Well	Ground water	Other	Inactive
WELL 28 - ABANDONED	7636	Yes	Well	Ground water	Other	Inactive
WELL 26 - ABANDONED	7635	Yes	Well	Ground water	Other	Inactive
WELL 25 - ABANDONED	7632	Yes	Well	Ground water	Other	Inactive
WELL 23 - ABANDONED	7631	Yes	Well	Ground water	Other	Inactive
WELL 19 - ABANDONED	7591	Yes	Well	Ground water	Other	Inactive
WELL 17 - INACTIVE	20688	Yes	Well	Ground water	Other	Inactive
WELL 04 - INACTIVE	20671	Yes	Well	Ground water	Other	Inactive
WELL 37 - INACTIVE	20593	Yes	Well	Ground water	Other	Inactive
WELL 24 - INACTIVE	20547	Yes	Well	Ground water	Other	Inactive
WELL 20 - INACTIVE	11043	Yes	Well	Ground water	Other	Inactive
WELL 15 - STANDBY	11040	Yes	Well	Ground water	Emergency	Active
PURCHASED WATER - TREATED - FAUNA #160A	62865	Yes	Consecutive Connection	Ground water	Permanent	Active
PURCHASED WATER - TREATED - ARBYS #163	69234	Yes	Consecutive Connection	Ground water	Permanent	Active
PURCHASED WATER - TREATED - PARK & RIDE	69235	Yes	Consecutive Connection	Ground water	Permanent	Active
PURCHASED WATER - TREATED - COMMERCE	69236	Yes	Consecutive Connection	Ground water	Permanent	Active
PURCHASED WATER - TREATED - REDWOOD	69237	Yes	Consecutive Connection	Ground water	Permanent	Active
PURCHASED WATER - TREATED - LABATH	69238	Yes	Consecutive Connection	Ground water	Permanent	Active
PURCHASED WATER - TREATED - C.CLUB & RPX	69239	Yes	Consecutive Connection	Ground water	Permanent	Active

1 - 50 of 103

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT - WELL 01 - TREATED	5411	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 08 - TREATED	5412	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 42 - TREATED	5419	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 02 - TREATED	5421	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 05 - TREATED	5424	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 06 - TREATED	5425	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 40 - TREATED	5445	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 07 - TREATED	5446	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 29 - TREATED	5447	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 30 - TREATED	5448	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 31 - TREATED	5449	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 33 - TREATED	5450	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 34 - TREATED	5451	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 22 - TREATED	5452	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 39 - TREATED	5453	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 21 - TREATED	5454	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 41 - TREATED	5455	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 35 - TREATED	5461	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 12 - TREATED	5462	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 08A - TREATED	5466	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 09 - TREATED	5467	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 10 - TREATED	5468	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 27 - TREATED	5469	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 13 - TREATED	5472	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 14 - TREATED	5473	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 15 - TREATED	5474	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 16 - TREATED	5475	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 18 - TREATED	5476	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 20 - TREATED	5477	Hypochlorination, Post	Disinfection
TREATMENT PLANT - WELL 11 - TREATED	5478	Hypochlorination, Post	Disinfection

1 - 30 of 30

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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