Arnold Line Water Association, MS
Lead detected, under the action levels
Latest 90th-percentile lead: 0.8 ppb (monitoring period 2022-2024). 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.
About Arnold Line Water Association
Arnold Line Water Association serves about 6,600 people through 2,500 service connections, which makes it a medium-sized system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Lamar County, Mississippi. EPA system ID: MS0370001; phone on file: 601-264-7111. They can tell you what your service line is made of and whether they pay to replace it.
Arnold Line Water Association's lead record
Against the period ending 2021 (1.2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Arnold Line Water Association is 7.3 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.8 ppb |
| 2021 | 1.2 ppb |
| 2018 | 2.4 ppb |
| 2017 | 7.3 ppb |
| 2016 | 1.7 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. Arnold Line Water Association's 0.8 ppb sits at the 41st percentile in Mississippi and the 48th nationally (higher means more lead).
Nearby utilities
9 other systems share Lamar County; 4 of them have a higher latest lead result than Arnold Line Water Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| West Lamar Water Assn #1 | 18,491 | 1.7 ppb |
| North Lamar Water Association | 12,778 | 1.2 ppb |
| Lamar Park Water & Sewage Assn | 7,714 | 1.7 ppb |
| Progress Comm Water Assn | 7,017 | 0.9 ppb |
| North Lumberton Utility Assn | 4,071 | 0.6 ppb |
| City Of Purvis | 2,590 | 0 (not detected) |
| Town Of Sumrall | 1,998 | 0.7 ppb |
| City Of Lumberton | 1,896 | 0.5 ppb |
| East Lowndes Water Association, Inc. | 459 | - |
Next steps for Hattiesburg, MS
Test your own tap with a certified lab first-draw sample; Hattiesburg, 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 Arnold Line Water Association 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. The action level is dropping - the 10 ppb rule from 2027.