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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA4010027
PWS NameNACIMIENTO WATER COMPANY
PWS TypeCommunity water system
Owner TypePrivate
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?No
Population Served2181
County ServedSan Luis Obispo

Note


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.

PWS Violation


Violations

Violation Category CodeViolation Type DescriptionRule NameContaminant NameViolation IDCompliance Status DescriptionCompliance Period Begin DateCompliance Period End DateIs Health Based Ind
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906057Known01-OCT-202431-DEC-2024Yes
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule9906056Open01-JUL-2024 - No
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule9906053Returned to Compliance01-OCT-2023 - No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906051Returned to Compliance01-APR-202330-JUN-2023Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906050Returned to Compliance01-APR-202330-JUN-2023Yes
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906048Returned to Compliance01-APR-202330-JUN-2023No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906047Returned to Compliance01-APR-202330-JUN-2023No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906046Returned to Compliance01-JAN-202331-MAR-2023Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906045Returned to Compliance01-JAN-202331-MAR-2023Yes
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule9906052Open01-JAN-2023 - No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906043Returned to Compliance01-OCT-202231-DEC-2022Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906044Returned to Compliance01-OCT-202231-DEC-2022Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906042Returned to Compliance01-JUL-202230-SEP-2022Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906041Returned to Compliance01-JUL-202230-SEP-2022Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906040Returned to Compliance01-JUL-202030-SEP-2020Yes
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleBromate9906039Returned to Compliance01-JUL-202030-SEP-2020No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906037Returned to Compliance01-APR-201930-JUN-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906038Returned to Compliance01-APR-201930-JUN-2019Yes
MRMonitoring, Routine (IDSE)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906030Returned to Compliance01-JAN-201931-MAR-2019No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleBromate9906032Returned to Compliance01-JAN-201931-MAR-2019No
MRMonitoring, Routine (IDSE)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906031Returned to Compliance01-JAN-201931-MAR-2019No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906034Returned to Compliance01-JAN-201931-MAR-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906033Returned to Compliance01-JAN-201931-MAR-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906036Returned to Compliance01-JAN-201931-MAR-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906035Returned to Compliance01-JAN-201931-MAR-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906028Returned to Compliance01-OCT-201831-DEC-2018Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906027Returned to Compliance01-OCT-201831-DEC-2018Yes
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleBromate9906029Returned to Compliance01-OCT-201831-DEC-2018No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906026Returned to Compliance01-JUL-201830-SEP-2018Yes
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleBromate9906025Returned to Compliance01-APR-201830-JUN-2018No
MRMonitoring, Routine (IDSE)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906023Returned to Compliance01-APR-201830-JUN-2018No
MRMonitoring, Routine (IDSE)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906024Returned to Compliance01-APR-201830-JUN-2018No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906021Returned to Compliance01-JAN-201731-MAR-2017Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906019Returned to Compliance01-OCT-201631-DEC-2016Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906017Returned to Compliance01-JUL-201630-SEP-2016Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906018Returned to Compliance01-JUL-201630-SEP-2016Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906014Returned to Compliance01-APR-201630-JUN-2016Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9906013Returned to Compliance01-JAN-201631-MAR-2016Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9906011Returned to Compliance01-OCT-201531-DEC-2015Yes
MCLMaximum Contaminant Level Violation, AverageStage 1 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)1206015Returned to Compliance01-APR-201230-JUN-2012Yes
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleBromate1206014Returned to Compliance01-APR-201230-JUN-2012No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)1106012Returned to Compliance01-OCT-201031-OCT-2010Yes
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule906013Returned to Compliance01-JUN-2009 - No
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule9906010Returned to Compliance01-OCT-1998 - No
MRInitial Tap Sampling for Pb and CuLead and Copper RuleLead and Copper Rule9606009Returned to Compliance01-JAN-1996 - No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9506007Returned to Compliance01-MAR-199531-MAR-1995Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule9406008Returned to Compliance01-JUN-199430-JUN-1994Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule9306004Returned to Compliance01-JUL-199331-JUL-1993Yes
MRInitial Tap Sampling for Pb and CuLead and Copper RuleLead and Copper Rule95V0001Returned to Compliance01-JUL-199304-APR-2000No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9306005Returned to Compliance01-DEC-199231-DEC-1992Yes
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Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
97060719906057SFLState Administrative/Compliance Order without penalty issued30-JAN-2025StateStage 2 HAA5 exceedances: Lakeview & Shoreline LRAA=66 ug/L, Capstan Circle LRAA=66.
97060709906056SFLState Administrative/Compliance Order without penalty issued19-NOV-2024StateFailure to distribute 2023 Consumer Confidence Report by July 1, 2024
97060699906051SOXState Compliance achieved07-AUG-2024StateFailed to sample of TTHM and HAA5 at approved locations during the 1st week of June 2023. Failed to sample and report for bromate at TP Effluent in April 2023. Stage 2 TTHM exceedances: Lakeview & Shoreline LRAA=105 ug/L, Capstan Circle LRAA=100. Using levels from previous quarter since system failed to collect samples in June 2023. Stage 2 HAA5 exceedances: Lakeview & Shoreline LRAA=102 ug/L, Capstan Circle LRAA=96. Using levels from previous quarter since system failed to collect samples in June 2023.
97060699906048SOXState Compliance achieved07-AUG-2024StateFailed to sample of TTHM and HAA5 at approved locations during the 1st week of June 2023. Failed to sample and report for bromate at TP Effluent in April 2023. Stage 2 TTHM exceedances: Lakeview & Shoreline LRAA=105 ug/L, Capstan Circle LRAA=100. Using levels from previous quarter since system failed to collect samples in June 2023. Stage 2 HAA5 exceedances: Lakeview & Shoreline LRAA=102 ug/L, Capstan Circle LRAA=96. Using levels from previous quarter since system failed to collect samples in June 2023.
97060699906047SOXState Compliance achieved07-AUG-2024StateFailed to sample of TTHM and HAA5 at approved locations during the 1st week of June 2023. Failed to sample and report for bromate at TP Effluent in April 2023. Stage 2 TTHM exceedances: Lakeview & Shoreline LRAA=105 ug/L, Capstan Circle LRAA=100. Using levels from previous quarter since system failed to collect samples in June 2023. Stage 2 HAA5 exceedances: Lakeview & Shoreline LRAA=102 ug/L, Capstan Circle LRAA=96. Using levels from previous quarter since system failed to collect samples in June 2023.
97060699906050SOXState Compliance achieved07-AUG-2024StateFailed to sample of TTHM and HAA5 at approved locations during the 1st week of June 2023. Failed to sample and report for bromate at TP Effluent in April 2023. Stage 2 TTHM exceedances: Lakeview & Shoreline LRAA=105 ug/L, Capstan Circle LRAA=100. Using levels from previous quarter since system failed to collect samples in June 2023. Stage 2 HAA5 exceedances: Lakeview & Shoreline LRAA=102 ug/L, Capstan Circle LRAA=96. Using levels from previous quarter since system failed to collect samples in June 2023.
97060679906053SOXState Compliance achieved01-JAN-2024StateFailure to collect required amount of samples, collected 5 out of 10. Sampled outside of monitoring period in October 2023.
97060669906052SFLState Administrative/Compliance Order without penalty issued15-DEC-2023StateFailure to collect required amount of samples, collected 5 out of 10. Sampled outside of monitoring period in October 2023.
97060649906045SOXState Compliance achieved19-JUL-2023StateStage 2 TTHM exceedances: Lakeview & Shoreline LRAA=105 ug/L, Capstan Circle LRAA=100. Stage 2 TTHM exceedances: Lakeview & Shoreline LRAA=102 ug/L, Capstan Circle LRAA=96.
97060649906046SOXState Compliance achieved19-JUL-2023StateStage 2 TTHM exceedances: Lakeview & Shoreline LRAA=105 ug/L, Capstan Circle LRAA=100. Stage 2 TTHM exceedances: Lakeview & Shoreline LRAA=102 ug/L, Capstan Circle LRAA=96.
97060639906041SOXState Compliance achieved17-MAY-2023StateTTHM exceedance at: Lakeside & Shoreline (LRAA=0.090 mg/L) and Capstan Circle (LRAA=0.089 mg/L) HAA5 exceedance at: Lakeside & Shoreline (LRAA=0.072 mg/L) and Capstan Circle (LRAA=0.070 mg/L)
97060629906044SOXState Compliance achieved17-MAY-2023StateStage 2 HAA5 exceedances: Lakeview & Shoreline LRAA=83; Capstan Circle LRAA=78.
97060629906043SOXState Compliance achieved17-MAY-2023StateStage 2 HAA5 exceedances: Lakeview & Shoreline LRAA=83; Capstan Circle LRAA=78.
97060639906042SOXState Compliance achieved17-MAY-2023StateTTHM exceedance at: Lakeside & Shoreline (LRAA=0.090 mg/L) and Capstan Circle (LRAA=0.089 mg/L) HAA5 exceedance at: Lakeside & Shoreline (LRAA=0.072 mg/L) and Capstan Circle (LRAA=0.070 mg/L)
97060569906039SOXState Compliance achieved01-JAN-2021State -
97060569906040SOXState Compliance achieved01-JAN-2021State -
97060529906030SOXState Compliance achieved29-SEP-2019State04_06_19C_025_4010027_30
97060529906033SOXState Compliance achieved29-SEP-2019State04_06_19C_025_4010027_30
97060529906034SOXState Compliance achieved29-SEP-2019State04_06_19C_025_4010027_30
97060529906035SOXState Compliance achieved29-SEP-2019State04_06_19C_025_4010027_30
97060529906036SOXState Compliance achieved29-SEP-2019State04_06_19C_025_4010027_30
97060529906031SOXState Compliance achieved29-SEP-2019State04_06_19C_025_4010027_30
97060529906032SOXState Compliance achieved29-SEP-2019State04_06_19C_025_4010027_30
97060539906037SFLState Administrative/Compliance Order without penalty issued20-AUG-2019State04_06_19C_037_4010027_02 Stage-2 DBP MCL LRAA HAA5 Exceedances at: Lakeview & Shoreline -006 and Capstan Circle -007
97060539906038SFLState Administrative/Compliance Order without penalty issued20-AUG-2019State04_06_19C_037_4010027_02 Stage-2 DBP MCL LRAA HAA5 Exceedances at: Lakeview & Shoreline -006 and Capstan Circle -007
97060469906028SFLState Administrative/Compliance Order without penalty issued22-FEB-2019State04_06_19C_018_4010027_02 OEL & LRAA Exceedances at both sampling points: 006 Lakeview & Shoreline; 007 at Capstan Circle; and, failure to sample for Bromate.
97060469906027SFLState Administrative/Compliance Order without penalty issued22-FEB-2019State04_06_19C_018_4010027_02 OEL & LRAA Exceedances at both sampling points: 006 Lakeview & Shoreline; 007 at Capstan Circle; and, failure to sample for Bromate.
97060469906029SFLState Administrative/Compliance Order without penalty issued22-FEB-2019State04_06_19C_018_4010027_02 OEL & LRAA Exceedances at both sampling points: 006 Lakeview & Shoreline; 007 at Capstan Circle; and, failure to sample for Bromate.
97060449906026SFLState Administrative/Compliance Order without penalty issued28-NOV-2018State04_06_18C_023_4010027_02 Stage 2 DBP MCL LRAA Exceedance - HAA5 Only 3rd Quarter 2018
97060439906023SFLState Administrative/Compliance Order without penalty issued16-AUG-2018State04_06_18C_019_4010027_30
97060439906024SFLState Administrative/Compliance Order without penalty issued16-AUG-2018State04_06_18C_019_4010027_30
97060439906025SFLState Administrative/Compliance Order without penalty issued16-AUG-2018State04_06_18C_019_4010027_30
97060429906021SOXState Compliance achieved01-JUL-2017State -
97060409906019SOXState Compliance achieved01-APR-2017State -
97060389906017SOXState Compliance achieved01-JAN-2017State -
97060399906018SOXState Compliance achieved01-JAN-2017State -
97060369906014SOXState Compliance achieved01-OCT-2016State -
97060249906013SFLState Administrative/Compliance Order without penalty issued20-MAY-2016State04_06_16C_011_4010027_02
97060219906011SFLState Administrative/Compliance Order without penalty issued13-JAN-2016State04_06_15C_034_4010027_02
97060341206014SOXState Compliance achieved01-OCT-2012State -
97060351206015SOXState Compliance achieved01-OCT-2012State -
1206024906013SFLState Administrative/Compliance Order without penalty issued16-FEB-2012StateENF_NO:04-06-12C-012; LCR MONITORING FAILURE
11060231106012SFLState Administrative/Compliance Order without penalty issued22-DEC-2010StateENF_NO:04-06-10C-039; TCR MCL FAILURE PUB NOTIF; RESUME SAMPLING.
97060339906010SOXState Compliance achieved25-JUN-2002State -
008989995V0001SOXState Compliance achieved04-APR-2000ODSWeb -
97060209606009SFJState Formal Notice of Violation issued02-JUN-1997StateENF_NO:04-06-97C-021; PB/CU RULE-NO SAMPLE TAKEN
95060199406008SFJState Formal Notice of Violation issued12-JUN-1995StateENF_NO:04-06-95C-038;
95060189306004SOXState Compliance achieved01-MAY-1995StateENF_NO:04-06-95C-023;
95060189306005SOXState Compliance achieved01-MAY-1995StateENF_NO:04-06-95C-023;
95060189506007SOXState Compliance achieved01-MAY-1995StateENF_NO:04-06-95C-023;
  • 1 - 50 of 51

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
GALLERY WELL31365YesIntakeSurface waterPermanentActive
WELL 03 - STANDBY - INACTIVE24412YesWell Ground waterOtherInactive
WELL 01 - STANDBY - INACTIVE24411YesWell Ground waterOtherInactive
WELL 02 - INACTIVE21498YesWell Ground waterOtherInactive
DISTRIBUTION SYSTEM31364NoDistribution System/Zone - - Active
TREATMENT PLANT - TREATED223NoTreatment Plant - - Active
  • 1 - 6 of 6

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT - TREATED223Gaseous Chlorination, PostDisinfection
TREATMENT PLANT - TREATED223Filtration, Rapid SandParticulate removal
TREATMENT PLANT - TREATED223Rapid MixParticulate removal
TREATMENT PLANT - TREATED223CoagulationParticulate removal
  • 1 - 4 of 4

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.