Tapcensus

Wyoming

Park County drinking water quality

50 active public water systems serve 38,249 people in Park County. 21 are compliant, 29 had at least one EPA violation in the past three years, 0 are designated serious violators, and 2 carry a health flag.

Active systems 50 11 community systems
People served 38K by public water systems
Systems with violations 29 58% of active systems, past 3 years
Serious violators 0 2 systems carry a health flag

Needs attention

Camp Buffalo Bill WY5601373 · Powell · Transient non-community system · Serves 250 1 rule violated in the past three years. Unresolved: Revised Total Coliform Rule (RTCR).
Big Valley & Crossed Arrows Imp Dist WY5601193 · Meeteetse · Community water system · Serves 35 4 rules violated in the past three years. Unresolved: Consumer Confidence Rule (CCR) and Groundwater Rule (GWR).

Community water systems

11 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Cody, City of
Cody 		10,224 2 0
Northwest Rural Water District
Cody 		7,330 0 0
Powell, City of
Powell 		6,310 1 0
Ynp-Mammoth Hot Springs
Yellowstone Np 		2,600 1 0
Green Acres Mobile Home Park
Cody 		375 0 0
Meeteetse, Town of
Meeteetse 		327 0 0
Jubys Mobile Home Park
Cody 		300 2 0
Rivers Bend Trailer Court
Cody 		96 1 1
Copperleaf Water System
Cody 		42 1 0
Big Valley & Crossed Arrows Imp Dist
Meeteetse 		35 4 2
Shoshone Municipal Pipeline
Cody 		25 0 0
Non-community systems (39: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Ynp-Canyon Village
Yellowstone Np 		4,300 2 0
Ynp-Norris
Yellowstone Np 		1,515 3 0
K Bar Z Guest Ranch
Cody 		847 2 1
Buffalo Bill Dam Visitor Center
Cody 		500 1 0
Ynp-Tower Fall CG
Yellowstone Np 		495 0 0
Camp Buffalo Bill
Powell 		250 1 1
Ynp-Indian Creek
Yellowstone Np 		240 1 0
Yellowstone Valley Inn
Cody 		237 1 0
Pahaska Tepee Resort
Cody 		205 0 0
Old Faithful RV Park, LLC
Cody 		181 0 0
Shoshone Nf-Wapiti CG & RS
Cody 		157 0 0
Shoshone Nf-Three Mile CG
Cody 		150 0 0
Shoshone Nf-Fox Creek CG
Cody 		120 1 0
Sleeping Giant Ski Area
Cody 		112 1 0
Big Horn Basin Boat Club
Powell 		104 0 0
Ynp-Slough Creek CG
Yellowstone Np 		94 0 0
Shoshone Nf-Beartooth Lake CG
Cody 		80 1 1
Buffalo Bill Sp-Lake Shore Campground
Cody 		77 0 0
Shoshone Nf-Island Lake CG
 75 0 0
Absaroka Mountain Lodge
Wapiti 		67 1 1
7d Ranch
Cody 		61 1 0
Bill Cody Ranch
Cody 		60 0 0
Contango Resources, Llc Clark Fork
Powell 		60 0 0
Shoshone Lodge
Cody 		60 0 0
Buffalo Bill ST PK North Fork
Cody 		50 1 0
Green Creek Inn & RV
Cody 		50 2 0
Shoshone Nf-Eagle Creek CG
Cody 		50 1 1
Edelweiss
Clark 		42 2 0
Elephant Head Lodge
Wapiti 		41 1 0
Rimrock Ranch
Cody 		40 0 0
Shoshone Nf-Rex Hale CG
Cody 		40 0 0
Trail Shop
Wapiti 		40 1 0
Uxu Ranch LLC
Wapiti 		35 2 0
Blackwater Creek Ranch
Cody 		32 2 0
Creekside Lodge
Cody 		32 1 0
Homestead Campground Water System
Cody 		28 0 0
Crossed Sabres Guest Ranch
Wapiti 		25 1 1
Shoshone Nf-Newton Creek #12 CG
Cody 		25 0 0
Painter Estates HOA
Cody 		8 0 0
Inactive systems (38, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Wyoming records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.