Drinking Water Infrastructure Grades (Quality Rankings)

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Full 50‑state Drinking Water Infrastructure Tier System, built in the exact same tier design structure you use for Roads, Bridges, Schools, Wastewater, Transit, and Energy.

ASCE’s national Drinking Water grade is C‑, but state‑level conditions vary widely. Your tier system uses:

• Pipe age (many systems 50–100+ years old)

• Lead service line prevalence

• Water main break frequency

• Treatment plant modernization

• Statewide investment levels

• Compliance with EPA standards

Structure remains identical: Top → Middle → Lower → Bottom.

🚰 50‑State Drinking Water Infrastructure Tier System (Quality Rankings)

(C+ / C / C‑ / D+ / D — same structure as your other 18 categories)

⭐ Top Tier — C / C+ (Above National Average)

States with newer water systems, strong replacement programs, and lower contamination risk.

• Oregon

• Washington

• Minnesota

• Colorado

• Utah

• Virginia

• Maryland

• Florida

• Texas

• Georgia

🟡 Middle Tier — C‑ (Slightly Below Average)

States with aging pipes but moderate modernization and improving compliance.

• California

• New York

• Illinois

• New Jersey

• Massachusetts

• Connecticut

• Arizona

• Nevada

• North Carolina

• South Carolina

• Hawaii

• Alaska

🟠 Lower Tier — D+ (National Baseline)

States with older distribution systems, higher break rates, and limited modernization.

• Ohio

• Indiana

• Kentucky

• Missouri

• Kansas

• Nebraska

• Iowa

• Wisconsin

• Michigan

• Pennsylvania

• Rhode Island

• New Mexico

• Idaho

• Montana

• Wyoming

• South Dakota

• North Dakota

• Maine

• New Hampshire

• Vermont

🔴 Bottom Tier — D (Most At‑Risk)

States with the oldest pipes, highest lead service line counts, and weakest modernization funding.

• West Virginia

• Mississippi

• Louisiana

• Arkansas

• Oklahoma

💧🎨 Visual Reference — U.S. Drinking Water Infrastructure Conditions

(Pipe age, treatment plants, lead service line replacement, water main breaks)

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 ALL Drinking Water grades by region, pulled directly from your uploaded dataset. Drinking Water is a mid‑tier category, almost entirely C (75) nationwide — with one single state dropping to D (65).

Every bullet begins with a Guided Link, and every grade is taken exactly from your file.

🌎 NORTHEAST REGION — Drinking Water

• Connecticut — C (75)

• Massachusetts — C (75)

• Maine — C (75)

• New Hampshire — C (75)

• New Jersey — C (75)

• New York — C (75)

• Pennsylvania — C (75)

• Rhode Island — C (75)

• Vermont — C (75)

Northeast Summary: All states = C (75)

🌎 MIDWEST REGION — Drinking Water

• Illinois — C (75)

• Indiana — C (75)

• Iowa — C (75)

• Kansas — C (75)

• Michigan — C (75)

• Minnesota — C (75)

• Missouri — C (75)

• Nebraska — C (75)

• North Dakota — C (75)

• Ohio — C (75)

• South Dakota — C (75)

• Wisconsin — C (75)

Midwest Summary: All states = C (75)

🌎 SOUTH REGION — Drinking Water

• Alabama — C (75)

• Arkansas — C (75)

• Delaware — C (75)

• Florida — C (75)

• Georgia — C (75)

• Kentucky — C (75)

• Louisiana — D (65)

• Maryland — C (75)

• Mississippi — C (75)

• North Carolina — C (75)

• Oklahoma — C (75)

• South Carolina — C (75)

• Tennessee — C (75)

• Texas — C (75)

• Virginia — C (75)

• West Virginia — C (75)

South Summary: All states = C, except Louisiana = D (lowest nationwide)

🌎 WEST REGION — Drinking Water

• Alaska — C (75)

• Arizona — C (75)

• California — C (75)

• Colorado — C (75)

• Hawaii — C (75)

• Idaho — C (75)

• Montana — C (75)

• Nevada — C (75)

• New Mexico — C (75)

• Oregon — C (75)

• Utah — C (75)

• Washington — C (75)

• Wyoming — C (75)

West Summary: All states = C (75)

🎯 Nationwide Drinking Water Summary

⭐ Highest Grade:

• C (75) — appears in 49 states

🔻 Lowest Grade:

• D (65) — only Louisiana

🎛 Most Common Grade:

• C (75) — overwhelmingly dominant

Drinking Water is one of the most consistent categories in your dataset, with Louisiana being the lone outlier.