Naval Construction Battal Ctr, MS
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2026-2028). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Naval Construction Battal Ctr serves about 3,347 people through 874 service connections, which makes it a medium-sized system under EPA's size classes. It is federally owned and draws groundwater, in Harrison County, Mississippi. EPA system ID: MS0240060; phone on file: 228-871-2200. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2026 (1.9 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Naval Construction Battal Ctr is 2.5 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 2 ppb |
| 2026 | 1.9 ppb |
| 2024 | 1.5 ppb |
| 2021 | 0.8 ppb |
| 2018 | 2.5 ppb |
Against other Mississippi systems
Of the 973 Mississippi systems with a lead result, the median latest reading is 1 ppb; 9 are over 15 ppb right now and 44 have gone over at some point. Naval Construction Battal Ctr's 2 ppb sits at the 79th percentile in Mississippi and the 72nd nationally (higher means more lead).
Neighbouring systems
24 other systems share Harrison County; 2 of them have a higher latest lead result than Naval Construction Battal Ctr. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Gulfport | 75,056 | 1.5 ppb |
| City Of Biloxi | 23,310 | 1 ppb |
| City Of Long Beach | 18,514 | 2.9 ppb |
| Diberville W/S | 12,721 | 1.6 ppb |
| City Of Pass Christian | 10,436 | 1 ppb |
| City Of Biloxi-North | 9,858 | 1.1 ppb |
| Keesler Air Force Base | 8,006 | 1.1 ppb |
| City Of Biloxi-French | 4,968 | 0.7 ppb |
| Riverbend Utilities Inc | 4,834 | 5.1 ppb |
| Saucier Utilities | 1,853 | 1.03 ppb |
Next steps for Gulfport, MS
Test your own tap with a certified lab first-draw sample; Gulfport, MS may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Naval Construction Battal Ctr whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.