Monterey One Water

What Monterey One Water does

Monterey One Water is a Joint Powers Authority (JPA) public agency established in 1972 under California law to provide wastewater collection, treatment, and water recycling services across the Monterey Peninsula. It operates the Regional Treatment Plant in Marina, California, and serves 11 member entities — including the cities of Carmel-by-the-Sea, Monterey, Pacific Grove, Sand City, Seaside, and Del Rey Oaks — plus surrounding districts. The agency is governed by a board of representatives appointed by member agencies and is not owned by private shareholders.

The agency's core technology stack centers on advanced wastewater treatment and resource recovery. The Pure Water Monterey program treats wastewater through advanced purification to deliver 5,750 acre-feet per year of purified water for groundwater replenishment, accounting for roughly 60% of the Peninsula's water supply portfolio. A co-digestion facility, operated under an O&M contract with Anaergia announced in December 2025, co-digests organic waste with wastewater solids to produce up to 100,000 million BTUs of renewable natural gas annually, supporting California's landfill diversion law. Additional infrastructure includes tertiary treatment producing recycled water for agricultural irrigation (including the Castroville Seawater Intrusion Project), a State Certified Laboratory, and ongoing pump station and solids-handling modernization.

Monterey One Water operates as a regulated public utility funded through established rate structures for residential, commercial, and industrial customers, with a small transaction-based convenience fee ($1.00 plus 2.5%) on credit card payments processed via the AFTS online portal. Revenue streams are complemented by resource-recovery outputs (renewable natural gas, biosolids, recycled water for agriculture) and member-agency contributions. Distribution is exclusively regional through the Regional Treatment Plant and conveyance infrastructure, with customer access via direct billing, an online payment portal, and customer service centers.

Name

Monterey One Water

Legal name

Monterey One Water

Website

https://montereyonewater.org

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

11–50 employees

Short description

Monterey One Water is a California Joint Powers Authority, founded in 1972, that provides wastewater treatment, water recycling, and groundwater replenishment services to 11 member agencies across the Monterey Peninsula, including the Pure Water Monterey purified-water program.

Ownership category

akta.pro rank

Product category

Wastewater Treatment and Water Recycling Services

NAICS

Water, Sewage and Other Systems (2213), Water Supply and Irrigation Systems (221310), Sewage Treatment Facilities (22132)

SIC

Electric, Gas & Sanitary Services (4900), Water Supply (4941)

akta.pro primary industry

Advanced Treatment & Purification Utilities (MF/UF, RO, AOP, UV) (EUANAGAD)

akta.pro secondary industries

Water Reclamation & Reuse Production (Tertiary/Advanced Treatment) (EUANADAD), Water Supply & Wastewater Utilities Administration (BPAIACAG)

Keywords

• Wastewater treatment services
• Water recycling utilities
• Groundwater replenishment programs
• Public water utility services
• Organic waste co-digestion

Headquarters

HQ city

Causeway Bay

HQ country

Hong Kong SAR China

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Technology or R&D, Supply Chain, Others

Pricing tiers

Distribution channels2 records

Marketing channels7 records

Core offering

Monterey One Water is a Joint Powers Authority public agency that collects, treats, and recycles wastewater for the Monterey Peninsula region through its Regional Treatment Plant. Its offerings include wastewater collection and treatment, recycled water for agricultural irrigation, the Pure Water Monterey groundwater replenishment program, organic waste co-digestion producing renewable natural gas, source control for businesses, liquid waste hauling services, and water quality laboratory testing.

Product overview

Monterey One Water operates as a Joint Powers Authority providing wastewater treatment and water recycling services. The organization operates the Regional Treatment Plant as its core facility and manages multiple infrastructure programs including the Pure Water Monterey groundwater replenishment program. The portfolio includes water treatment and purification, resource recovery (biogas, biosolids), pump station infrastructure, and various environmental programs. The organization offers services for residential, commercial, and agricultural customers, with a focus on environmental protection and sustainable water management.

Differentiator

Problem solved

Functional benefit

Brands

• Pure Water Monterey: Advanced water purification and groundwater replenishment project that increases potable water injections for the Peninsula's water supply.

Products and services

• Regional Treatment Plant

Quantifiable outcome

• Adds 5,750 acre-feet per year of potable water to the Peninsula's supply
• +2 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• AnaergiacoreTechnology or Integration · 9 December 2025Anaergia operates an organic waste co-digestion facility at the Regional Treatment Plant under an operations and maintenance contract. The project enhances biogas production, supports California's landfill diversion law, and generates up to 100,000 million BTUs of renewable natural gas annually. This is Anaergia's ninth O&M agreement in the United States.

Scale indicators5 records

Recent moves10 records

Expansion highlights4 records

Direct peers

• Los Angeles County Sanitation Districts: Joint Powers Authority formed by 23 independent special districts operating one of the largest wastewater treatment and reuse programs in the U.S. Highly comparable to MOW's multi-member JPA structure, scale of regional treatment, and resource-recovery (biogas) operations.
• West Basin Municipal Water District: California water wholesaler running multiple advanced water-recycling treatment facilities producing recycled water for injection, irrigation, and industrial reuse. Directly comparable in product mix (tertiary/advanced treatment for indirect potable reuse and irrigation) and in operating as a public water utility serving multiple municipalities.
• Orange County Water District: Operates the Groundwater Replenishment System (GWRS), the world's largest indirect potable reuse facility, performing advanced treatment of reclaimed water for groundwater injection. Closely comparable to Pure Water Monterey's advanced purification-for-recharge model and serves as the benchmark California potable-reuse agency.
• Irvine Ranch Water District: California leader in water reuse, operating dual-barrier recycled water treatment for both irrigation and groundwater replenishment. Comparable to MOW's diversified recycled-water-for-agriculture-plus-groundwater-recharge service portfolio.
• Inland Empire Utilities Agency: Joint Powers Authority providing wastewater collection, treatment, and water recycling services to seven contracting agencies in the San Bernardino region, including recycled water for landscape and agricultural irrigation. Comparable JPA scale, member-agency structure, and recycled-water-for-irrigation use case.
• Orange County Sanitation District: Large Joint Powers Authority wastewater treatment agency in Southern California operating reclamation plants whose effluent feeds Orange County Water District's GWRS. Closely matches MOW's JPA governance structure, scale of Regional Treatment Plant, and role as the upstream producer of recycled water for downstream potable reuse.
• Central Contra Costa Sanitary District: Special district providing wastewater collection, treatment, and recycled water production (including for industrial reuse) in the San Francisco Bay Area. Comparable operating model focused on tertiary treatment and recycled water for non-potable applications.
• Silicon Valley Clean Water: California Joint Powers Authority providing wastewater treatment and recycled water to multiple member agencies in San Mateo County. Comparable Northern California JPA governance, multi-member-service-area model, and focus on resource recovery.

Regional players

• Upper San Gabriel Valley Municipal Water District: Southern California water district focused on recycled water production and groundwater recharge programs in the Upper San Gabriel Valley, with a service area comparable in size and posture to MOW's Peninsula role. Comparable recycled water / groundwater replenishment mandate but operating in a different Southern California basin.

Broad incumbents

• East Bay Municipal Utility District: Large vertically integrated water and wastewater utility serving the San Francisco East Bay with collection, treatment, recycled water, and hydroelectric generation. Comparable in delivering a full water-services portfolio under public utility governance, but at significantly greater scale and geographic breadth than MOW.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@montereyonewater
• Facebookfacebook.com/montereyonewater
• LinkedInlinkedin.com/company/m1w
• Instagraminstagram.com/@montereyonewater
• Xx.com/monterey1water

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Monterey One Water