Monterey One Water
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.
- Company typePrivate
- Founded1972
- HeadquartersCauseway Bay, Hong Kong SAR China
- Headcount11–50
- GTM typeB2B
- OfferingServices
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.
Monterey One Water firmographics
Firmographics- 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
Monterey One Water industry classification
Industry- 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
Where Monterey One Water is headquartered
LocationHeadquarters
- HQ city
- Causeway Bay
- HQ country
- Hong Kong SAR China
- HQ region
- Asia
Offices2 records
Markets served
Monterey One Water business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Operations, Personnel, Technology or R&D, Supply Chain, Others
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Transaction based/ take rate | Pay-as-you-go | Credit card payment convenience fee |
Distribution channels2 records
Marketing channels7 records
Monterey One Water product offering
Product offeringCore 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
Companies that use Monterey One Water
Customer profileSegments4 records
Ideal customer profiles4 records
Monterey One Water technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Monterey One Water partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- AnaergiacoreAnaergia 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
Monterey One Water competitors and assessment
Company assessmentDirect 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
Monterey One Water social profiles
Digital presenceMonterey One Water financial estimates
Financial estimateRevenue estimate
Valuation estimate
Monterey One Water leadership team
Management profileNumber of profiles
Profiles2 records
Monterey One Water funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Monterey One Water M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Monterey One Water
What does Monterey One Water do?
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.
Is Monterey One Water a public or private company?
Monterey One Water is a private company. It is classified as state government owned and is currently operating.
When was Monterey One Water founded?
Monterey One Water was founded in 1972. It employs 11 to 50 people.
Where is Monterey One Water based?
Monterey One Water is headquartered in Causeway Bay, Hong Kong SAR China, in the Asia region.
Who are Monterey One Water's main competitors?
Direct peers on record are Los Angeles County Sanitation Districts, West Basin Municipal Water District, Orange County Water District, Irvine Ranch Water District, Inland Empire Utilities Agency, Orange County Sanitation District, Central Contra Costa Sanitary District and Silicon Valley Clean Water. Upper San Gabriel Valley Municipal Water District is listed as a regional player. East Bay Municipal Utility District is listed as a broad incumbent.
Does Monterey One Water have an API?
No public API is recorded for Monterey One Water.
What industry is Monterey One Water in?
Monterey One Water's product category is Wastewater Treatment and Water Recycling Services. Its primary akta.pro industry code is EUANAGAD, Advanced Treatment & Purification Utilities (MF/UF, RO, AOP, UV), with a secondary code of EUANADAD, Water Reclamation & Reuse Production (Tertiary/Advanced Treatment). Its NAICS code is 2213 and its SIC code is 4900.