Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA4110012
PWS Name	CUESTA LA HONDA GUILD INC
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	915
County Served	San Mateo

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, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1117013	Returned to Compliance	01-OCT-2021	31-DEC-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1117012	Returned to Compliance	01-JUL-2021	30-SEP-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1117011	Returned to Compliance	01-APR-2021	30-JUN-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1117010	Returned to Compliance	01-JAN-2021	31-MAR-2021	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	1117031	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	1117014	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	1117015	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	1117042	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	1117041	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	1117043	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	1117039	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	1117038	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	1117037	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	1117036	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	1117035	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	1117040	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	1117034	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	1117033	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	1117032	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	1117030	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	1117029	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	1117028	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	1117027	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	1117026	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	1117025	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	1117024	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	1117023	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	1117022	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	1117021	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	1117020	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	1117019	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	1117018	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	1117017	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	1117016	Returned to Compliance	01-JAN-2019	31-DEC-2021	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1117008	Returned to Compliance	01-FEB-2018	28-FEB-2018	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	1117007	Returned to Compliance	01-DEC-2010	31-DEC-2010	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	4006	Returned to Compliance	01-FEB-2000	29-FEB-2000	No

1 - 37 of 37

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1117019	1117011	SOX	State Compliance achieved	04-APR-2023	State	-
1117019	1117012	SOX	State Compliance achieved	04-APR-2023	State	-
1117019	1117013	SOX	State Compliance achieved	04-APR-2023	State	-
1117019	1117010	SOX	State Compliance achieved	04-APR-2023	State	-
1117018	1117018	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117019	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117020	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117021	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117022	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117023	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117024	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117025	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117026	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117027	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117028	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117030	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117031	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117032	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117033	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117034	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117035	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117036	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117037	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117038	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117039	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117040	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117041	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117042	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117043	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117017	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117016	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117015	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117014	SOX	State Compliance achieved	03-JAN-2023	State	-
1117018	1117029	SOX	State Compliance achieved	03-JAN-2023	State	-
1117016	1117008	SOX	State Compliance achieved	09-AUG-2021	State	-
1117012	1117007	SOX	State Compliance achieved	01-FEB-2011	State	ENF_NO:02-17-11C-003;
1117014	4006	SOX	State Compliance achieved	29-MAR-2000	State	This TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.

1 - 37 of 37

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CUESTA REAL WTP - TREATED - DESTROYED	31441	Yes	Intake	Surface water	Other	Inactive
BOBCAT WELL - PENDING	CA4110012008	Yes	Well	Ground water	Other	Inactive
BOBCAT WELL - STANDBY	23864	Yes	Well	Ground water	Emergency	Active
UPPER WOODHAM SPRING	31445	Yes	Intake	Surface water	Permanent	Active
MINDEGO CREEK - RAW	31444	Yes	Intake	Surface water	Permanent	Active
LOWER WOODHAM CREEK - RAW	31443	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	31442	No	Distribution System/Zone	-	-	Active
CUESTA LA HONDA GUILD WTP - TREATED	3594	No	Treatment Plant	-	-	Active
AERATION TREATMENT PLANT	54522	No	Treatment Plant	-	-	Active

1 - 9 of 9

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CUESTA LA HONDA GUILD WTP - TREATED	3594	Innovative	Particulate removal
CUESTA LA HONDA GUILD WTP - TREATED	3594	Hypochlorination, Post	Disinfection
AERATION TREATMENT PLANT	54522	Aeration, Spray	Disinfection by-products control

1 - 3 of 3

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