Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WA5340900
PWS Name	SAMMAMISH PLATEAU WATER & SEWER
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	Yes
Population Served	79362
County Served	King

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, Regular	Nitrate Rule	Nitrate	0984135	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	0945914	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	08872482032	Known	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	08905452931	Known	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	08905452946	Known	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	10360442326	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	10360432326	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	10360432306	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	10360432274	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	10360442110	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	10360432067	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	10360432065	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	10360432051	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	10360432050	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	10360432042	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	10360442041	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	10360442040	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	10360432039	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	10360432037	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	10360432035	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	10360432959	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	10360432005	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	10360432020	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	10360442031	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	10360432010	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	10360432015	Known	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	07863462931	Returned to Compliance	01-OCT-2007	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	07863982032	Returned to Compliance	01-OCT-2007	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	07863462946	Returned to Compliance	01-OCT-2007	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	07604132931	Returned to Compliance	01-JUL-2007	30-SEP-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	07604132946	Returned to Compliance	01-JUL-2007	30-SEP-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	07586352032	Returned to Compliance	01-JUL-2007	30-SEP-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	07987391085	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	07987391005	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	07987391075	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	07987391074	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	07987391020	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	07987391045	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	07987391036	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	07987391035	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	07987391025	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	07987391024	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	07987391015	Known	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	07987391010	Known	01-JAN-2005	31-DEC-2007	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0411533	Known	01-JAN-2004	31-JAN-2004	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0052036	Known	01-AUG-2000	31-AUG-2000	Yes
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	9550232	Known	01-JUN-1995	30-JUN-1995	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9301543	Known	01-DEC-1992	31-DEC-1992	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9200907	Known	01-JUN-1992	30-JUN-1992	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9200944	Known	01-MAR-1992	31-MAR-1992	No

1 - 50 of 53

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1045914ENF	0945914	SOX	State Compliance achieved	24-FEB-2010	State	-
984135ENF	0984135	SOX	State Compliance achieved	24-FEB-2010	State	-
CM379	07604132931	SOX	State Compliance achieved	01-JAN-2008	State	-
CM360	07863982032	SOX	State Compliance achieved	01-JAN-2008	State	-
CM360	07863462946	SOX	State Compliance achieved	01-JAN-2008	State	-
CM360	07863462931	SOX	State Compliance achieved	01-JAN-2008	State	-
CM379	07586352032	SOX	State Compliance achieved	01-JAN-2008	State	-
CM379	07604132946	SOX	State Compliance achieved	01-JAN-2008	State	-
0008014	0052036	SIF	State Public Notification received	31-AUG-2000	State	-
9500028	9550232	SIA	State Violation/Reminder Notice	30-JUN-1995	State	-
9301102	9301543	SIA	State Violation/Reminder Notice	31-DEC-1992	State	-
9230043	9200943	SIA	State Violation/Reminder Notice	31-JAN-1992	State	-

1 - 12 of 12

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
02055/Ames Lake CVZ (1)	29962	Yes	Consecutive Connection	Ground water	Emergency	Active
Well #14	17241	Yes	Well	Ground water	Seasonal	Inactive
Well #9	17244	Yes	Well	Ground water	Seasonal	Active
Well #13	17240	Yes	Well	Ground water	Permanent	Inactive
Well 2.1	17233	Yes	Well	Ground water	Permanent	Inactive
Well # 13R AAS174	30353	Yes	Well	Ground water	Permanent	Active
Wells 2.1 & 2.2	28959	Yes	Well	Ground water	Permanent	Active
Well 4R AAS270	28958	Yes	Well	Ground water	Permanent	Active
Well 12R AEC911	28957	Yes	Well	Ground water	Permanent	Active
Well 2.2 (2R) AAD383	28566	Yes	Well	Ground water	Permanent	Active
Well 11.1	28565	Yes	Well	Ground water	Permanent	Active
Well #11.2	17243	Yes	Well	Ground water	Permanent	Active
Well #10	17242	Yes	Well	Ground water	Permanent	Active
Well #8	17238	Yes	Well	Ground water	Permanent	Active
Well #7	17237	Yes	Well	Ground water	Permanent	Active
Well 1R	17232	Yes	Well	Ground water	Permanent	Active
Well #12	17239	Yes	Well	Ground water	Emergency	Inactive
Well #6	17236	Yes	Well	Ground water	Emergency	Inactive
Well #4	17235	Yes	Well	Ground water	Emergency	Inactive
Well # 5	17234	Yes	Well	Ground water	Emergency	Inactive
363505/Issaquah (2)	29960	Yes	Consecutive Connection	Surface water	Emergency	Active
902603/Union Hill CVZ (2)	29961	Yes	Consecutive Connection	Surface water	Emergency	Active
75265X/NE Sammamish (4)	29959	Yes	Consecutive Connection	Ground water	Permanent	Active
AA374C/Cascade Water Alliance (2)	29958	Yes	Consecutive Connection	Surface water	Permanent	Active
Wells 2.1 and 2.2	2550	No	Treatment Plant	-	-	Active
Wells 4R, 11.2 and 11.1	2551	No	Treatment Plant	-	-	Active
Well 10	2552	No	Treatment Plant	-	-	Active
Well 12 R	2555	No	Treatment Plant	-	-	Active
Well 13R	2558	No	Treatment Plant	-	-	Active
INACTIVE - Well 14	2559	No	Treatment Plant	-	-	Active
Sec. 36 Booster Pump Station	2560	No	Treatment Plant	-	-	Active
Well 1R	3859	No	Treatment Plant	-	-	Active
Purchased surface water	4007	No	Treatment Plant	-	-	Active
Wells 7, 8, 9	4098	No	Treatment Plant	-	-	Active

1 - 34 of 34

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
Wells 2.1 and 2.2	2550	Hypochlorination, Pre	Iron removal
Wells 2.1 and 2.2	2550	Fluoridation	Other
Wells 2.1 and 2.2	2550	Filtration, Greensand	Manganese removal
Wells 2.1 and 2.2	2550	Hypochlorination, Post	Disinfection
Wells 2.1 and 2.2	2550	pH Adjustment, Post	Corrosion control
Wells 4R, 11.2 and 11.1	2551	Hypochlorination, Post	Disinfection
Wells 4R, 11.2 and 11.1	2551	Fluoridation	Other
Wells 4R, 11.2 and 11.1	2551	Filtration, Greensand	Manganese removal
Wells 4R, 11.2 and 11.1	2551	Hypochlorination, Pre	Iron removal
Well 10	2552	Hypochlorination, Post	Disinfection
Well 10	2552	Fluoridation	Other
Well 10	2552	pH Adjustment, Post	Corrosion control
Well 12 R	2555	Hypochlorination, Post	Disinfection
Well 12 R	2555	Hypochlorination, Pre	Iron removal
Well 12 R	2555	Fluoridation	Other
Well 12 R	2555	Filtration, Greensand	Manganese removal
Well 13R	2558	Hypochlorination, Post	Disinfection
Well 13R	2558	Filtration, Greensand	Manganese removal
Well 13R	2558	Hypochlorination, Pre	Iron removal
Well 13R	2558	Fluoridation	Other
INACTIVE - Well 14	2559	Hypochlorination, Post	Disinfection
Sec. 36 Booster Pump Station	2560	Fluoridation	Other
Sec. 36 Booster Pump Station	2560	Hypochlorination, Post	Disinfection
Well 1R	3859	Fluoridation	Other
Well 1R	3859	Hypochlorination, Post	Disinfection
Well 1R	3859	pH Adjustment, Post	Corrosion control
Purchased surface water	4007	Gaseous Chlorination, Post	Disinfection
Wells 7, 8, 9	4098	Hypochlorination, Post	Disinfection
Wells 7, 8, 9	4098	Fluoridation	Other
Wells 7, 8, 9	4098	pH Adjustment, Post	Corrosion control

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.

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