Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NV0003028
PWS Name	NELLIS AIR FORCE BASE
PWS Type	Community water system
Owner Type	Federal government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	19081
County Served	Clark

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	TTHM	143114	Returned to Compliance	01-JUL-2025	30-SEP-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	143111	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	143110	Returned to Compliance	01-APR-2017	30-JUN-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	143109	Returned to Compliance	01-JUL-2011	30-SEP-2011	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	142707	Returned to Compliance	01-JUN-2007	30-JUN-2007	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	139705	Returned to Compliance	01-SEP-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	139605	Returned to Compliance	01-JUN-2005	30-JUN-2005	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	139304	Returned to Compliance	01-JUL-2004	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	139004	Returned to Compliance	01-OCT-2003	31-OCT-2003	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	138102	Returned to Compliance	01-APR-2002	30-APR-2002	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	294	Known	01-JUL-1994	31-JUL-1994	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	191	Known	01-JUL-1991	31-JUL-1991	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
146923	143114	SOX	State Compliance achieved	14-JAN-2026	State	RTC WITH 12/9/2025 SAMPLE. LRAA = 0.072 PPM
146917	143111	SOX	State Compliance achieved	12-DEC-2017	State	LRAA BELOW MCL
146917	143110	SOX	State Compliance achieved	12-DEC-2017	State	LRAA BELOW MCL
146910	143109	SOX	State Compliance achieved	21-DEC-2011	State	RUNNING ANNUAL AVERAGE =0.080 MG/L.
146707	139304	SOX	State Compliance achieved	10-AUG-2007	State	-
146707	142707	SOX	State Compliance achieved	10-AUG-2007	State	-
146906	139705	SOX	State Compliance achieved	28-OCT-2005	State	-
146805	139605	SOX	State Compliance achieved	29-JUL-2005	State	-
144004	139004	SOX	State Compliance achieved	07-NOV-2003	State	SAMPLES TAKEN 10072003 ALL ABSENT PN IN NEWS PAPER DATED 10312003 RCD 11072003
143602	138102	SOX	State Compliance achieved	26-APR-2002	State	-

1 - 10 of 10

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC FROM AMS TP AT SNWS NV0000289	2539	Yes	Consecutive Connection	Surface water	Permanent	Active
AREA 2 WELL 1 NON POTABLE USE	3467	Yes	Well	Ground water	Seasonal	Inactive
AREA 2 WELL 2 NON-POTABLE	3466	Yes	Well	Ground water	Permanent	Inactive
AREA 2 WELL 3 NON-POTABLE	3465	Yes	Well	Ground water	Permanent	Inactive
AREA 2 WELL 4 NON-POTABLE	3464	Yes	Well	Ground water	Permanent	Inactive
AREA 2 WELL 5 NON-POTABLE	3463	Yes	Well	Ground water	Permanent	Inactive
CRAIG RD WELL 4	3461	Yes	Well	Ground water	Permanent	Inactive
AREA 1 WELL 13 NON-POTABLE	3458	Yes	Well	Ground water	Permanent	Inactive
AREA 1 WELL 6	3313	Yes	Well	Ground water	Permanent	Inactive
CRAIG RD WELL 2	3462	Yes	Well	Ground water	Permanent	Active
CRAIG RD WELL 8	3314	Yes	Well	Ground water	Permanent	Active
AREA 1 WELL 12 NON-POTABLE EMERGENCY	3460	Yes	Well	Ground water	Emergency	Active
AREA 1 WELL 11 NON-POTABLE EMERGENCY	3459	Yes	Well	Ground water	Emergency	Active
AREA 1 WELL 14 NON-POTABLE EMERGENCY	3456	Yes	Well	Ground water	Emergency	Active
AREA 1 WELL 1 NON-POTABLE EMERGENCY	3455	Yes	Well	Ground water	Emergency	Active
AREA 1 WELL 7 489 NON-POTABLE EMERGENCY	3312	Yes	Well	Ground water	Emergency	Active
CC FROM RM TP AT SNWS NV0000289	5547	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	1674	No	Distribution System/Zone	-	-	Active
BOOSTER AREA 3 1998 REPLACEMENT	10263	No	Pump Facility	-	-	Active
BOOSTER AREA 2 10113	5734	No	Pump Facility	-	-	Active
BOOSTER AREA 1 BLDG 563	5735	No	Pump Facility	-	-	Active
BOOSTER AREA 1 1725 STORAGE	5736	No	Pump Facility	-	-	Active
BOOSTER AREA 1 490	5737	No	Pump Facility	-	-	Active
BOOSTER AREA 3 1998	5733	No	Pump Facility	-	-	Inactive
BOOSTER PUMP STATION MANCH MANOR	5738	No	Pump Facility	-	-	Inactive
STORAGE AREA 1 561 500K TOWER	3315	No	Storage	-	-	Active
STORAGE AREA 1 BLEND 491 500K	3316	No	Storage	-	-	Active
STORAGE AREA 1 1721 300K	3317	No	Storage	-	-	Active
STORAGE AREA 1 BLEND 562 200K	4016	No	Storage	-	-	Active
STORAGE AREA 1 1725 2MG 300K	4017	No	Storage	-	-	Active
STORAGE AREA 2 10113 300K	5169	No	Storage	-	-	Active
STORAGE AREA 2 10420 100K	5170	No	Storage	-	-	Active
STORAGE AREA 3 1999 3MG	5729	No	Storage	-	-	Active
RES 563 3MG	4014	No	Storage	-	-	Inactive
RES 490 100K	4015	No	Storage	-	-	Inactive
MANCH MANOR TANK	5730	No	Storage	-	-	Inactive
CHLORINATOR FOR CC FROM AMS TP AT SNWS	3468	No	Treatment Plant	-	-	Active
CRAIG RD WELLS CHLORINATOR BLDG 563	5178	No	Treatment Plant	-	-	Active
CHLORINATOR FOR CC FROM RM TP AT SNWS	5549	No	Treatment Plant	-	-	Active
AREA 2 CHLORINATOR 10107	5731	No	Treatment Plant	-	-	Active
ST08 10113 AREA 2 AERATOR	6907	No	Treatment Plant	-	-	Active
PF07 CHLORINATOR 1998 AREA 3	9750	No	Treatment Plant	-	-	Active
AREA 1 WELL 1 CHLORINATOR	5173	No	Treatment Plant	-	-	Inactive
AREA 1 WELL 7 CHLORINATOR	5174	No	Treatment Plant	-	-	Inactive
AREA 1 WELL 6 CHLORINATOR	5175	No	Treatment Plant	-	-	Inactive
CRAIG RD WELL 4 CHLORINATOR	5176	No	Treatment Plant	-	-	Inactive
CRAIG RD WELL 2 CHLORINATOR	5177	No	Treatment Plant	-	-	Inactive

1 - 47 of 47

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CHLORINATOR FOR CC FROM AMS TP AT SNWS	3468	Hypochlorination, Post	Disinfection
AREA 1 WELL 1 CHLORINATOR	5173	Hypochlorination, Post	Disinfection
AREA 1 WELL 7 CHLORINATOR	5174	Hypochlorination, Post	Disinfection
AREA 1 WELL 6 CHLORINATOR	5175	Hypochlorination, Post	Disinfection
CRAIG RD WELL 4 CHLORINATOR	5176	Hypochlorination, Post	Disinfection
CRAIG RD WELL 2 CHLORINATOR	5177	Hypochlorination, Post	Disinfection
CRAIG RD WELLS CHLORINATOR BLDG 563	5178	Hypochlorination, Post	Disinfection
CHLORINATOR FOR CC FROM RM TP AT SNWS	5549	Hypochlorination, Post	Disinfection
AREA 2 CHLORINATOR 10107	5731	Hypochlorination, Pre	Disinfection
ST08 10113 AREA 2 AERATOR	6907	Aeration, Spray	Disinfection by-products control
PF07 CHLORINATOR 1998 AREA 3	9750	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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