Lead Pipe Map

Lead pipes in Northern Mariana Islands

Northern Mariana Islands's 35 community water systems reported 0 lead and 0 galvanized-requiring-replacement service lines, plus 16,005 of unknown material.

0Lead
0Galvanized, replace
16,005Unknown
0Systems with lead

0% of the service lines Northern Mariana Islands utilities reported are lead or galvanized requiring replacement, well below the national share of 3.1%. 96% are still unidentified (national: 21%). 2 systems haven't reported counts yet.

No confirmed lead, but unknown lines remain (3)

Water systemLeadGalv.Unknown% leadPeople
Commonwealth Utilities Corp (Saipan)Saipan0012,2420%48,524
Commonwealth Utilities Corp (Tinian)San Jose001,9010%3,005
Commonwealth Utilities Corp (Rota)Sinapalu001,8620%2,504

No lead or unknown lines reported (2)

Systems serving 1,000 or more people. Systems without counts on file are listed as 0.

Water systemLeadGalv.Unknown% leadPeople
Saipan Ice And WaterLower Base0000%3,101
Star WaterChalan Lau Lau0000%1,522

Northern Mariana Islands lead pipe questions

How many lead pipes are in Northern Mariana Islands?

Northern Mariana Islands's community water systems reported 0 lead service lines and 0 galvanized lines that must be replaced, for 0 in total. Another 16,005 lines are of unknown material.

What share of Northern Mariana Islands service lines are lead?

0% of reported service lines in Northern Mariana Islands are lead or galvanized requiring replacement, well below the national figure of 3.1%. 96% are still unknown, compared with 21% nationally.

How do I find out if my Northern Mariana Islands home has a lead service line?

Search for your water system or ZIP code above, then open your utility's address-level inventory map. You can also check the pipe where it enters your home with a scratch and magnet test.

Source: EPA SDWIS service line inventory, 2026 Q3. Smaller systems with no lead or unknown lines are omitted. See also national rankings.