Who owns the water service line in Newark, CA
The District owns and maintains the water service line from the main up to and including the meter. Everything past the meter is the property owner's. This is Alameda County Water District's own statement.
Which part of the pipe is yours
Yours from the meter to your building
Why, and what to doYours all the way to the main under the road
Why, and what to do
Where the responsibility divides
- Alameda County Water District
- The run under the road and the meter itself, owned as well as operated. The District states that it "operates and maintains the pipe from the main up to and including the water meter", and elsewhere on the same page divides the pipe by title, describing the inventory it filed as covering "the ACWD-owned portion of the service line" and, from 2024, "the customer-owned portion of the service lines".
- The property owner
- The District states that "the customer's responsibility begins after the water meter and all the pipe downstream going toward the home or business" - the pipe from the meter to the building, the irrigation system beyond it, and the plumbing inside. The District calls that length "the customer-owned portion of the service lines", so on its own account the pipe is yours as well as your responsibility.
What Alameda County Water District has told the State
Federal rules required every community water system to inventory its service lines and publish the result. These are the figures this one filed.
Alameda County Water District has classified more of its service lines than most of California: 0.17% of its lines are unclassified, against 9.2% statewide.
- 88,162
- 150 (0.17%)
Where else this answer applies
Alameda County Water District also supplies one other place with a page here, and the statement above is the same one that governs it: Fremont. Each of them settles the sewer lateral separately, often under a different authority from this one.
What this does not tell you
- This describes who is responsible for which part of the pipe. It is not a record of what your own service line is made of.
- The State's service area map puts effectively all of Newark's land inside the boundary it maps for Alameda County Water District. Measured 2026-09-11.
- Unclassified means nobody has established what the pipe is made of. It does not mean lead was found.
- 88,162 is the whole of Alameda County Water District's reported inventory, not this city alone. The State's file records no city for these lines, so they cannot be counted per city.
- Classified does not mean inspected. Across California only 22% of service lines were established by field inspection; most of the rest come from records, the year of construction, or a predictive model.
- These figures were submitted to the State by the water system itself and were read on 2026-09-04. They may not reflect its current inventory - the system's own page is the place to confirm anything about a specific address.
Your other pipe has a different answer
For the sewer lateral, Union Sanitary District gives the opposite answer to the one above:
The property owner is responsible for the whole lateral, including the run beneath the pavement and the road, up to the point it joins the public main. The District's ordinance goes further than its web page and says the building sewer is owned by the property owner, not merely their responsibility. On a private street or driveway the sewer main itself can be private too, in which case somebody other than the District maintains that as well.
Your sewer lateral is yours to the main; your water line stops being yours at the meter.
Who pays for the sewer lateral in Newark, CAHow this compares across California
- Why your two pipes disagree — the places where the sewer and water authorities contradict each other about the run beneath the road.
- Which water systems know what is buried — how much of each California system’s network the utility can actually identify.