Tapcensus

Iowa

Jones County drinking water quality

37 active public water systems serve 16,079 people in Jones County. 19 are compliant, 18 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 2 carry a health flag.

Active systems 37 13 community systems
People served 16K by public water systems
Systems with violations 18 49% of active systems, past 3 years
Serious violators 1 2 systems carry a health flag

Needs attention

Montipark LLC IA5300688 · Monticello · Community water system · Serves 60 10 rules violated in the past three years. Unresolved: Ground Water Rule, Lead and Copper Rule, Public Notice Rule and Revised PN Rule, and Consumer Confidence Rule.
Monticello Jellystone Park IA5343203 · Monticello · Transient non-community system · Serves 153 2 rules violated in the past three years. Unresolved: Revised Total Coliform Rule and Public Notice Rule and Revised PN Rule.
Monticello Jellystone Park II IA5343204 · Monticello · Transient non-community system · Serves 50 1 rule violated in the past three years. Unresolved: Revised Total Coliform Rule.

Community water systems

13 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Anamosa Municipal Water Supply
Anamosa 		4,457 0 0
Monticello Water Supply
Monticello 		4,040 0 0
Anamosa State Penitentiary
Anamosa 		1,230 0 0
Olin Water Supply
Olin 		651 1 0
Wyoming Water System
Wyoming 		523 0 0
Oxford Junction Water Supply
Oxford Junction 		424 1 0
Martelle Water Works
Martelle 		249 0 0
Onslow Water Supply
Onslow 		201 1 1
Center Junction (eiruss)
Center Junction 		100 4 3
Morley Municipal Water Supply
Morley 		98 2 0
Bacon Addition
Monticello 		81 0 0
Fairview Terrrace Mobile Home Park LLC
Anamosa 		72 4 2
Montipark LLC
Monticello 		60 10 4
Non-community systems (24: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Caseys General Store (anamosa)
Fairview 		1,215 1 1
Shops Above the Wapsi
Anamosa 		515 4 0
Central Park Jones Conservation
Center Junction 		260 0 0
Apostolic Church
Anamosa 		200 0 0
Camp Bear Creek
Wyoming 		191 1 1
ST Johns Lutheran Church
Monticello 		157 0 0
Camp Courageous of Iowa
Monticello 		155 0 0
Monticello Jellystone Park
Monticello 		153 2 2
Wapsipinicon State Pk-Campground/lodge
Anamosa 		150 0 0
Scooters
Anamosa 		125 0 0
Wildwood Acres Association
Monmouth 		100 1 0
The Hillside Bar & Grill
Monticello 		92 0 0
Wapsipinicon Country Club
Anamosa 		85 1 0
Riverview Ridge Campgrounds
Cascade 		80 0 0
Camp Courageous 2
Monticello 		56 0 0
Hale Tap
Hale 		54 0 0
Wayne Zion Lutheran Church
Monticello 		52 2 1
Fawn Creek Country Club
Anamosa 		50 1 0
Monticello Jellystone Park II
Monticello 		50 1 1
Saints Peter & Paul Lutheran Church
Monticello 		45 0 0
The Grove
Scotch Grove 		31 3 1
Outback Canoe Rental
Monticello 		27 0 0
Lubben Winery
Anamosa 		25 0 0
Savor the Barn LLC
Langworthy 		25 1 1
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 Iowa 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.