Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA4010007
PWS Name	CITY OF PASO ROBLES WATER DIVISION
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	31176
County Served	San Luis Obispo

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	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	9706004	Returned to Compliance	01-JUN-2015	-	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	806004	Returned to Compliance	01-APR-2008	30-APR-2008	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	94V0001	Returned to Compliance	30-JUN-1993	01-MAR-2000	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9306002	Returned to Compliance	01-JUN-1993	30-JUN-1993	Yes

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9806011	9706004	SOX	State Compliance achieved	24-JUN-2015	State	04_06_15C_006_4010007_34
9806013	806004	SOX	State Compliance achieved	30-MAY-2008	State	This TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
00E0001	94V0001	EOX	Federal Compliance achieved	01-MAR-2000	ODSWeb	-
9506007	9306002	SOX	State Compliance achieved	06-JAN-1996	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
NACIMIENTO WATER PROJECT	CA4010007051	Yes	Consecutive Connection	Surface water	Other	Inactive
KD WELL 27 - RAW	67202	Yes	Well	Ground water	Permanent	Active
THUNDERBIRD WELL 26	63329	Yes	Well	Ground water	Permanent	Active
RONCONI WELL 16	21410	Yes	Well	Ground water	Permanent	Active
THUNDERBIRD WELL 13	12147	Yes	Well	Ground water	Permanent	Active
AIRPORT WELL 18 (1993) - DRY CREEK	12146	Yes	Well	Ground water	Permanent	Active
THUNDERBIRD WELL 17 (1993)	12145	Yes	Well	Ground water	Permanent	Active
ROYAL OAK WELL 20	12143	Yes	Well	Ground water	Permanent	Active
FOX WELL 21	12142	Yes	Well	Ground water	Permanent	Active
THUNDERBIRD 23	12140	Yes	Well	Ground water	Permanent	Active
SHERWOOD WELL 09	12133	Yes	Well	Ground water	Permanent	Active
THUNDERBIRD WELL 10	12107	Yes	Well	Ground water	Permanent	Active
SHERWOOD WELL 11	12105	Yes	Well	Ground water	Permanent	Active
AVERY WELL 24	12102	Yes	Well	Ground water	Permanent	Active
TOWER WELL 25	12101	Yes	Well	Ground water	Permanent	Active
OSBORNE WELL 14	12098	Yes	Well	Ground water	Permanent	Active
RONCONI WELL 01	12097	Yes	Well	Ground water	Permanent	Active
RONCONI WELL 04	12096	Yes	Well	Ground water	Permanent	Active
RONCONI WELL 16 (1990) - INACTIVE	CA4010007009	Yes	Well	Ground water	Other	Inactive
13TH & RIVERSIDE WELL 08 - ABANDONED	8121	Yes	Well	Ground water	Other	Inactive
SHERWOOD WELL 06 - INACTIVE	21422	Yes	Well	Ground water	Other	Inactive
CRESTON PARK WELL 07 - DESTROYED	18797	Yes	Well	Ground water	Other	Inactive
AIRPORT WELL - DESTROYED	18795	Yes	Well	Ground water	Other	Inactive
TARR WELL - INACTIVE	12144	Yes	Well	Ground water	Other	Inactive
CUESTA WELL 22 - INACTIVE	12141	Yes	Well	Ground water	Other	Inactive
BORCHARDT WELL 05 - INACTIVE	12100	Yes	Well	Ground water	Other	Inactive
BUTTERFIELD WELL 12 - INACTIVE	12099	Yes	Well	Ground water	Other	Inactive
SCHWARTZ WELL 15 (1990) - INACTIVE	12095	Yes	Well	Ground water	Other	Inactive
LAKE NACIMIENTO - RAW	64043	Yes	Intake	Surface water	Permanent	Active
NACIMIENTO WATER PROJECT TURNOUT - RAW	53538	Yes	Consecutive Connection	Surface water	Permanent	Active
RONCONI WELLS - PALL ARIA MTU-RAW	31327	No	Common Headers	-	-	Active
BARNEY SCHWARTZ BLEND - INACTIVE	59715	No	Common Headers	-	-	Inactive
DISTRIBUTION SYSTEM	31326	No	Distribution System/Zone	-	-	Active
SHERWOOD 9 ARSENIC TP EFFLUENT BLEND	54471	No	Sampling Station	-	-	Active
TB SELENIUM BLEND @ RAMADA-INACTIVE	54470	No	Sampling Station	-	-	Inactive
THUNDERBIRD WELL 23 - TRT CL	138	No	Treatment Plant	-	-	Active
AIRPORT WELL 18 - TRT CL	140	No	Treatment Plant	-	-	Active
THUNDERBIRD WELL 13 - TRT CL	142	No	Treatment Plant	-	-	Active
THUNDEBIRD WELL 10 - TRT CL	143	No	Treatment Plant	-	-	Active
RONCONI WELL 04 - TRT CL XCLD	144	No	Treatment Plant	-	-	Active
RONCONI WELL 01 - TRT CL XCLD	145	No	Treatment Plant	-	-	Active
OSBORNE WELL 14 - TRT CL	146	No	Treatment Plant	-	-	Active
AVERY WELL 24 - TRT CL	149	No	Treatment Plant	-	-	Active
THUNDERBIRD WELL 17 (1993) - TRT CL	150	No	Treatment Plant	-	-	Active
SHERWOOD WELL 11 - TRT CL	151	No	Treatment Plant	-	-	Active
FOX WELL 21 - TRT CL	154	No	Treatment Plant	-	-	Active
ROYAL OAK WELL 20 - TRT CL	157	No	Treatment Plant	-	-	Active
SHERWOOD WELL 09 - TRT CL	160	No	Treatment Plant	-	-	Active
TOWER WELL 25 - TRT CL XCLD	161	No	Treatment Plant	-	-	Active
SHERWOOD WELL 09 - GAC EFFLUENT	182	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
THUNDERBIRD WELL 23 - TRT CL	138	Hypochlorination, Pre	Disinfection
AIRPORT WELL 18 - TRT CL	140	Hypochlorination, Post	Disinfection
THUNDERBIRD WELL 13 - TRT CL	142	Hypochlorination, Post	Disinfection
THUNDEBIRD WELL 10 - TRT CL	143	Hypochlorination, Post	Disinfection
RONCONI WELL 04 - TRT CL XCLD	144	Hypochlorination, Post	Disinfection
RONCONI WELL 01 - TRT CL XCLD	145	Hypochlorination, Post	Disinfection
OSBORNE WELL 14 - TRT CL	146	Hypochlorination, Post	Disinfection
CUESTA WELL 22 - TRT CL	148	Hypochlorination, Post	Disinfection
AVERY WELL 24 - TRT CL	149	Hypochlorination, Post	Disinfection
THUNDERBIRD WELL 17 (1993) - TRT CL	150	Hypochlorination, Post	Disinfection
SHERWOOD WELL 11 - TRT CL	151	Hypochlorination, Post	Disinfection
BUTTERFIELD WELL 12 - TRT CL	153	Hypochlorination, Post	Disinfection
FOX WELL 21 - TRT CL	154	Hypochlorination, Post	Disinfection
BORCHARDT WELL 05 - TRT CL - INACTIVE	155	Hypochlorination, Post	Disinfection
ROYAL OAK WELL 20 - TRT CL	157	Hypochlorination, Post	Disinfection
TARR WELL - TRT CL - INACTIVE	158	Hypochlorination, Post	Disinfection
SHERWOOD WELL 09 - TRT CL	160	Hypochlorination, Post	Disinfection
TOWER WELL 25 - TRT CL XCLD	161	Hypochlorination, Post	Disinfection
SHERWOOD WELL 09 - GAC EFFLUENT	182	Activated Carbon, Granular	De-chlorination
SHERWOOD WELL 09 - ARSENIC TP EFF	183	Ion Exchange	Inorganics removal
SHERWOOD WELL 11 - ARSENIC TP EFF	184	Ion Exchange	Inorganics removal
SCHWARTZ WELL 15 - TRT - INACTIVE	191	Hypochlorination, Post	Disinfection
RONCONI WELLS - PALL ARIA MTU-TREATED	5717	Filtration, Ultrafiltration	Particulate removal
RONCONI WELLS - PALL ARIA MTU-TREATED	5717	Filtration, Greensand	Manganese removal
PALL ARIA-EFF @ PUMPING LINE D/S RSV	5731	Gaseous Chlorination, Pre	Disinfection
NACIMIENTO SWTP	61740	Flocculation	Particulate removal
NACIMIENTO SWTP	61740	Sedimentation	Particulate removal
NACIMIENTO SWTP	61740	Rapid Mix	Particulate removal
NACIMIENTO SWTP	61740	Permanganate	Taste / odor control
NACIMIENTO SWTP	61740	Filtration, Ultrafiltration	Particulate removal
NACIMIENTO SWTP	61740	Activated Carbon, Granular	Disinfection by-products control
NACIMIENTO SWTP	61740	4-Log Remove/Inactivate Viruses	Disinfection
THUNDERBIRD WELL 26 TRT CL	63330	Hypochlorination, Post	Disinfection
KD WELL 27 - TRT CL2	74604	Hypochlorination, Post	Disinfection

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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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