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WaterSafety

Medium Systems (10K-100K)

Mid-size water systems serving 10,000 to 100,000 people.

28
Systems
2,040,734
People Served
79/100
Avg Score
8
With Violations
Large Systems (100K+)Medium Systems (10K-100K)Small Systems (1K-10K)Very Small Systems (<1K)

Grade Distribution

10
Grade A
7
Grade B
5
Grade C
1
Grade D
5
Grade F

Medium Systems (10K-100K) (28)

Kenosha Water Utility

Kenosha, Wisconsin

99,218 people
A

Springdale Water Utilities

Springdale, Arkansas

98,948 people
A

Wvawc - Huntington Dist

Charleston, West Virginia

98,647 people
C

Las Cruces Municipal Water System

Las Cruces, New Mexico

98,175 people6 violations
F

Lawton

Lawton, Oklahoma

92,757 people
B

North Penn Water Authority

Lansdale, Pennsylvania

91,941 people
A

Bloomington

Bloomington, Minnesota

91,300 people
A

Warren County Water District

Bowling Green, Kentucky

91,118 people
B

Santa Fe Water System (city Of)

Santa Fe, New Mexico

90,810 people1 violation
D

Brooklyn Park

Brooklyn Park, Minnesota

89,995 people
B

Fort Smith Water Utilities

Fort Smith, Arkansas

86,209 people1 violation
C

Sioux City Water Supply

Sioux City, Iowa

85,791 people10 violations
F

Cicero

Cicero, Illinois

83,000 people1 violation
C

Rogers Water Utilities

Rogers, Arkansas

81,443 people
A

Hardin County Water District #2

Elizabethtown, Kentucky

76,326 people
C

Ankeny, City Of

Ankeny, Iowa

76,207 people
A

City of Gulfport

Gulfport, Mississippi

75,056 people
A

Morgantown Utility Board

Morgantown, West Virginia

64,644 people
A

Carson City Public Works

Carson City, Nevada

59,000 people
B

City of Southaven

Southaven, Mississippi

56,000 people
B

City of Olive Branch

Olive Branch, Mississippi

54,025 people
B

Roswell Municipal Water System

Roswell, New Mexico

54,025 people2 violations
F

Grand Island, City Of

Grand Island, Nebraska

51,478 people
A

Beckley Water Company

Beckley, West Virginia

47,386 people
A

City of Hattiesburg

Hattiesburg, Mississippi

43,449 people
B

Papillion, City Of

Papillion, Nebraska

35,000 people3 violations
F

Berkeley County Pswd-Potomac River

Martinsburg, West Virginia

34,786 people
C

Kearney, City Of

Kearney, Nebraska

34,000 people3 violations
F

Frequently Asked Questions

Medium Systems (10K-100K) have an average Water Safety Score of 79/100. 8 of 28 systems (29%) have at least one health-based violation. Mid-size and small systems vary widely in water quality.

28 medium systems (10k-100k) collectively serve 2,040,734 people.

System size can influence water quality. Larger systems typically have more resources for water treatment, testing, and infrastructure maintenance. Smaller systems may struggle with compliance due to limited budgets and staff. However, size alone does not determine water quality — source water quality, treatment methods, and infrastructure age all play roles.