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CAPP Construction

In late 2025/early 2026, Carpinteria Valley Water District (CVWD) and Carpinteria Sanitary District will start building the Carpinteria Advanced Purification Project (CAPP).

You may experience some noise, traffic, and short-term lane closures. CVWD will coordinate closely with neighbors and the City to lessen disruptions.

Refer to the Timeline and Frequently Asked Questions (FAQ) below to see how construction may impact you.

About the Project

CAPP will provide up to 1.2 million gallons of purified water per day, which is enough to meet 25% of District demands.

The project includes:

  • A new Advanced Water Purification Facility.
  • A 10-inch pipeline to two groundwater injection wells.
  • Two monitoring well clusters.
  • Two groundwater injection wells.

 

Timeline

Timeline for projects: Advanced Water Purification Facility, Conveyance Pipelines, and Wells from 2026-2028.

Project Map

Map showing pipelines, wells, and boundaries in a city layout, with labeled features like AWP Facility and injection wells.

FAQs

Where is the construction happening? 

The Advanced Water Purification Facility will be located within the existing Carpinteria Sanitary District’s Wastewater Treatment Plant, which is at 5351 6th St.

The wells will be located along Meadow View Ln. and on the Saint Joseph’s Catholic Church property (adjacent to Linden Ave.). The pipeline will be located along Olive Ave., 6th St., Maple Ave., Carpinteria Ave., Eugenia Pl.,  Linden Ave., and Meadow View Ln.  See map here.

How are you lessening disruptions to the community? 
  • Work hours in higher-trafficked areas will be reduced during peak traffic times.
  • 24-foot sound-dampening walls will enclose the site for the duration.
  • During evening work, sound is capped at 75dB at your property line. This will be continuously monitored.
  • Scheduling of construction activities around school calendar.
  • At night, lights will face downward and be shielded.
  • Streets and landscaping will be repaved or replanted to City standards before crews demobilize.
  • Mufflers on loud equipment.
Where are the piplines located, and what should I expect? 

One block at a time, the construction team will open-cut trenches in the streets and a private commercial parking lot. The construction will last eight months.

A 5,400‑ft, 10-inch pipeline will carry purified water to the wells, and shorter 12-inch and 24-inch lines return clean‑out (backwash) water to the sewer.

You can expect:

  • Daytime construction hours with night work only if a busy intersection requires it.
  • Work hours in higher-trafficked areas reduced during peak traffic times.
  • Temporary single‑lane closures and flaggers will keep traffic moving.
  • Streets and landscaping are repaved or replanted to City standards before crews demobilize.
Where will the wells be installed, and what should I expect? 

Construction of the injection and monitoring wells will last approximately seven months. There will be four periods during that time with 24-hour shifts for construction staff; this will last about two months.

Two groups of wells installed close to one another (“well clusters”) will track water quality. Following construction, these wells will not be visible to the public.

Two injection wells will add purified water to the local groundwater basin. Above-ground piping and electrical cabinetry will be visible following construction.

What to Expect During Well Drilling:

  • 24-foot sound-dampening walls will enclose the site for the entire seven months during well drilling activities.
  • During evening work, sound will be capped at 75dB at residential property lines. This must be continuously monitored.
  • Lights will face downward and be shielded.
  • Night work will end once drilling is complete.

What to Expect After Drilling (Up to several months after drilling crews leave):

  • Crews will return for one shorter visit to set piping and small control cabinets.
  • Finished wells will sit below grade under a manhole lid; cabinets are painted to blend in.
  • Black wrought iron fencing will enclose and protect the facilities and landscape will be added to the exterior to provide a visual barrier.
Will Garbage Pickup or Mail Service be disrupted? 

These services will continue during construction and will not be disrupted.