The Mammoth Community Water District

What The Mammoth Community Water District does

The Mammoth Community Water District (MCWD) is a California Special District founded in 1957 that provides integrated water and wastewater services to the community of Mammoth Lakes and surrounding Mono County. The district operates as a publicly accountable utility governed by a five-member elected Board of Directors, with statutory exclusive service-area rights that create a regulated local monopoly. Its core offering consists of water supply and distribution, sewer collection and treatment, and connection/permit services, delivered directly through owned infrastructure including water mains, meters, treatment plants, and a 500,000-gallon T-2 storage tank currently undergoing rehabilitation.

The district's technology stack is anchored by Advanced Metering Infrastructure (AMI) using Neptune T-10 radio-read meters, which enables hourly consumption monitoring, automated threshold-based leak alerts, and a customer portal hosted on Municipal Online Payments. A multi-year GPS/GIS digital mapping program catalogs district assets, including infrastructure that becomes buried under snowpack during winter months. Conservation-oriented customer engagement includes indoor rebates (toilets up to $200, clothes washers up to $400, dishwashers up to $200), turf replacement rebates, and a Water Leak Relief Program capping adjustments at $300 per occurrence.

MCWD generates revenue primarily through recurring base and usage charges for water service and sewer service, billed monthly in 1,000-gallon increments, supplemented by transaction-based permit and connection fees (including FOG discharge permits for food-service establishments), a trucked recycled water program, and conservation rebates. The FY27 Master Fee Schedule and a March 2026 public hearing on rate adjustments indicate ongoing recalibration of the rate structure, which is designed to reward lower consumption. Customer segments include residential property owners (including second-home and vacation properties, which is primary), food-service establishments subject to FOG compliance, new construction and development, and multi-family dwellings and HOAs. The district is not an investable equity target; it is a governmental entity with no parent company, no subsidiaries, and no venture or private equity ownership.

Name

The Mammoth Community Water District

Legal name

Mammoth Community Water District

Website

https://mcwd.dst.ca.us

Company type

Private

Founded year

1957

Operating status

Operating

Headcount range

11–50 employees

Short description

The Mammoth Community Water District is a California Special District providing water and wastewater services to Mammoth Lakes and Mono County since 1957, operating AMI-enabled metering, conservation rebates, and connection permits under an elected Board governance model.

Ownership category

akta.pro rank

Product category

Water and Wastewater Utility Services

NAICS

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

SIC

Water Supply (4941), Sanitary Services (4950)

akta.pro primary industry

Water Supply & Wastewater Utilities Administration (BPAIACAG)

Keywords

• Municipal water supply
• Wastewater treatment services
• Water conservation programs
• Utility billing services
• Special district governance

Headquarters

HQ city

Mammoth Lakes

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Technology or R&D, Supply Chain, Marketing or Sales

Revenue model

1. Water Service Charges: Water service charges consisting of base charges covering operation and maintenance of water distribution systems, and usage charges based on consumption measured in 1,000 gallon increments.
2. Wastewater/Sewer Service Charges: Sewer service charges with base charges and flow charges calculated from average winter water use for commercial customers.
3. Permit and Connection Fees: Fees for connection permits (new construction, remodels, additions), construction permits, landscape irrigation permits, FOG discharge permits, demolition permits, and temporary hydrant meters.
4. Trucked Recycled Water Program: Revenue from providing trucked recycled water for construction site soil compaction, backfill consolidation, concrete mixing, dust control, and restricted access landscape irrigation.
5. Water Leak Relief Program: Discounted rate (50%) applied to estimated excess consumption during leak periods, with minimum $20 and maximum $300 adjustment per occurrence, limited to one adjustment per two-year period.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

The Mammoth Community Water District provides potable water supply, distribution, and wastewater collection and treatment to residential and commercial customers within the Mammoth Lakes and Mono County service area. Services are billed through regulated monthly base charges and usage-based consumption charges, with supporting customer-facing programs including AMI-based leak alerts, conservation rebates for water-efficient appliances and turf replacement, and permits for new connections, construction, and FOG discharge compliance.

Product overview

The Mammoth Community Water District provides water and wastewater services to the Mammoth Lakes community through a combination of core utility services and customer-facing technology platforms. The core offerings include water supply and distribution and sewer/wastewater services. The District complements these with conservation programs including indoor rebates (toilets, clothes washers, dishwashers) and turf replacement rebates. Customer engagement is handled through the Municipal Online Payments-powered Customer Portal for bill payment and account management, and the Streamline website platform for public information. The District also provides permits for construction, connections, and landscaping, and maintains compliance programs including water service line surveys and backflow testing. An Advanced Metering Infrastructure (AMI) system enables Water Usage Alerts for leak detection.

Differentiator

Problem solved

Functional benefit

Products and services

• Water and Sewer Service Core water supply, distribution, and wastewater/sewer service provided to residential and commercial customers in the Mammoth Lakes service area, billed via monthly base charges and usage-based consumption charges.
• Customer Portal Online platform powered by Municipal Online Payments enabling customers to view and pay water/sewer bills, manage account information, and monitor water usage patterns.
• Water Usage Alerts Alert service powered by Advanced Metering Infrastructure that notifies customers when water consumption exceeds defined thresholds, supporting proactive leak detection and property-level consumption monitoring.
• Indoor Rebate Program Conservation rebate program for property owners in the MCWD service area offering up to $200 per WaterSense labeled toilet (first two per unit), up to $400 for Energy Star certified clothes washers, and up to $200 for Energy Star certified dishwashers.
• Turf Replacement Rebate Incentive program for customers to remove turf grass from their landscape and replace it with water-efficient alternatives to conserve water.
• Permits Connection permits (new construction, remodels, additions), construction permits, landscape/irrigation permits, backflow testing, demolition permits, and FOG discharge permits for commercial food establishments.
• Water Service Line Survey Online survey tool used by MCWD to fulfill EPA-required inventory of water service line materials, asking customers to identify whether their service line pipe is copper, galvanized steel, plastic, or lead.

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability1 record

Feature3 records

Partnerships

Three partnerships are on record, tiered minor.

• Save Our WaterminorOthersCalifornia statewide water conservation program that MCWD participates in and promotes through its quick links and conservation resources.
• WaterSense (EPA)minorOthersEPA water efficiency program that MCWD aligns with for rebate eligibility requirements. WaterSense labeled products qualify for MCWD rebate programs.
• Inyo-Mono Integrated Regional Water Management ProgramminorStrategic or Co-development PartnerRegional water management collaboration covering Inyo and Mono counties. MCWD participates in this IRWMP for coordinated water resource planning.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Sweetwater Authority: California joint powers authority providing water service in southern San Diego County. Comparable to MCWD as a publicly governed water utility operating under regulated rates with a Board of Directors, conservation focus, and AMI-style customer engagement.
• Olivenhain Municipal Water District: California special district providing water, recycled water, and wastewater services in northern San Diego County. Comparable to MCWD in special-district structure, recycled water program, conservation rebates, and integrated service offering.
• Crescenta Valley Water District: Small California special district providing water and wastewater service to the Crescenta Valley. Closely mirrors MCWD's scale, governance, and integrated water/sewer service model in a similar foothill/suburban setting.
• Cucamonga Valley Water District: California special district providing water and wastewater services in the Cucamonga Valley. Highly comparable to MCWD in governance structure (elected board), conservation/rebate programs, and integration of water plus sewer under a single regulated franchise.

Broad incumbents

• Golden State Water Company: Investor-owned water utility (subsidiary of American States Water) regulated by the CPUC serving communities across California. Comparable in regulated rate-base water delivery and conservation program structure but at much larger geographic scale.
• San Jose Water Company (SJW Group): Investor-owned water utility serving the greater San Jose area with regulated rates and CPUC oversight. Comparable business model (rate-base water distribution, conservation programs, AMI deployment) but operates at substantially larger scale than MCWD.
• East Bay Municipal Utility District (EBMUD): Large California municipal water and wastewater utility with elected board governance, conservation programs, and integrated water-plus-wastewater franchise — the same operating archetype as MCWD but serving a much larger urban customer base.
• California Water Service Group: Investor-owned water and wastewater utility serving ~2 million people across California. Directly comparable to MCWD in regulated water-service delivery, tiered conservation rate design, and reliance on California Public Utilities Commission oversight, though at vastly greater scale.
• Suburban Water Systems: Investor-owned water utility serving parts of Los Angeles and San Bernardino counties under CPUC regulation. Comparable to MCWD in California regulated water-service delivery and conservation program administration, though at greater scale and customer count.

Peers

• Las Virgenes Municipal Water District: California special district providing water and wastewater services in the western San Fernando Valley/Las Virgenes area. Closest direct peer to MCWD as a similarly structured special district with conservation programs, recycled water initiatives, and elected board governance.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/mammothwater

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 The Mammoth Community Water District