LANDER, CITY OF

Wyoming — Community Water System — PWSID: WY5600176

System Information

PWSID	WY5600176
System Name	LANDER, CITY OF
System Type	Community Water System
Water Source	Surface Water
Activity Status	Active
Owner Type	Local
EPA Region	08
Serves School	No
Wholesaler	Yes
First Reported	Feb 13, 1979
Last Reported	Nov 17, 2025

Location & Contact

State	Wyoming
City	LANDER
ZIP Code	82520
Address	240 Lincoln Street
Organization	HOPKIN, LANCE
Phone	307-332-3956

Population & Service

Population Served	7,615
Service Connections	4,297

Drinking Water Violations (43)

This water system has 43 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Contaminant	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Nov 1, 2023	Nov 30, 2023	Interim Enhanced Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Nov 30, 2023	Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2020	Dec 31, 2020	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2020	Arsenic Rule
Jan 1, 2020	Dec 31, 2020	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2020	Dec 31, 2020	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2020	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2018	Arsenic Rule
Jan 1, 2018	Dec 31, 2018	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jun 1, 2017	May 31, 2018	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	May 31, 2018	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2017	May 31, 2018	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	May 31, 2018	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016	Jan 31, 2016	Surface Water Treatment Rule	MR	No	Yes	—	—	—	Resolved	Jan 31, 2016	Surface Water Treatment Rule
Jan 1, 2016	Jan 31, 2016	Surface Water Treatment Rule	MR	No	Yes	—	—	—	Resolved	Jan 31, 2016	Surface Water Treatment Rule
Oct 1, 2013	Dec 31, 2013	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2013	Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013	Dec 31, 2013	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2013	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011	Dec 31, 2013	Glyphosate	MR	No	Yes	—	0.7 mg/L	—	Archived	Dec 31, 2013	Synthetic Organic Chemicals
Jan 1, 2011	Dec 31, 2013	Di(2-ethylhexyl) adipate	MR	No	Yes	—	0.4 mg/L	—	Archived	Dec 31, 2013	Synthetic Organic Chemicals
Jan 1, 2011	Dec 31, 2013	Atrazine	MR	No	Yes	—	0.003 mg/L	—	Archived	Dec 31, 2013	Synthetic Organic Chemicals
Jan 1, 2011	Dec 31, 2013	Pentachlorophenol	MR	No	Yes	—	0.001 mg/L	—	Archived	Dec 31, 2013	Synthetic Organic Chemicals
Jan 1, 2011	Dec 31, 2013	2,4,5-TP	MR	No	Yes	—	0.05 mg/L	—	Archived	Dec 31, 2013	Synthetic Organic Chemicals
Sep 1, 2004	Sep 30, 2004	Surface Water Treatment Rule	MR	No	No	—	—	—	Resolved	Sep 30, 2004	Surface Water Treatment Rule
Sep 1, 2004	Sep 30, 2004	Surface Water Treatment Rule	MR	No	No	—	—	—	Resolved	Sep 30, 2004	Surface Water Treatment Rule
Sep 1, 2004	Sep 30, 2004	Surface Water Treatment Rule	MR	No	No	—	—	—	Resolved	Sep 30, 2004	Surface Water Treatment Rule
Sep 1, 2004	Sep 30, 2004	Surface Water Treatment Rule	MR	No	No	—	—	—	Resolved	Sep 30, 2004	Surface Water Treatment Rule
Oct 1, 2000	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 29, 2000	Lead and Copper Rule
Oct 1, 2000	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 29, 2000	Lead and Copper Rule
Jun 1, 1995	Jun 30, 1995	Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Jun 30, 1995	Surface Water Treatment Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

Browse All Water Systems Water Safety Stats Water Safety Home

Browse All Water Systems Water Systems in Wyoming