What Mount Pleasant Waterworks does

Mount Pleasant Waterworks is a public water and wastewater utility established in 1933 and headquartered at 1619 Rifle Range Road in Mount Pleasant, South Carolina, serving approximately 90,000 residents and businesses within an exclusive franchise territory. The utility draws raw water from the Charleston Aquifer via six deep wells at approximately 2,000 feet below the surface, processes it through four Reverse Osmosis treatment plants using chloramine disinfection, and supplements supply with treated surface water purchased from Charleston Water System. The distribution network comprises roughly 560 miles of water lines, eight storage tanks providing 12 million gallons of combined capacity, and over 5,000 fire hydrants; the wastewater system spans more than 500 miles of collection lines, 160+ pump stations, and two water resource facilities that treat an average of 9.6 million gallons per day (over 3.5 billion gallons annually).

The business operates as an enterprise fund — funded entirely by water and wastewater rates plus new tap fees rather than taxes — under South Carolina Department of Environmental Services and EPA regulatory oversight. Pricing follows a Basic Facility Charge per Residential Equivalent Unit combined with a four-tiered conservation-oriented volumetric rate, plus wastewater charges and optional subscription programs including Service Line Care ($5.95/month), Septic System Maintenance ($15/month base), and the multi-agency Clean Water Credit Program offering up to $9,000 in conversion incentives. Distribution runs through a 24/7 WaterSmart self-service portal (with mobile app, automated leak alerts, and paperless billing), phone support, and walk-in/drive-thru service, with specialized iBackflow and ArcGIS platforms managing FOG compliance and lead service line inventory respectively. Strategic priorities evidenced by a $55.6 million revenue bond issuance center on deep well replacement, pump station upgrades, fleet maintenance facility construction, and continued regulatory-driven compliance investment (PFAS, Lead and Copper Rule).

Name

Mount Pleasant Waterworks

Legal name

Mount Pleasant Waterworks

Website

https://mountpleasantwaterworks.com/

Company type

Private

Founded year

1933

Operating status

Operating

Headcount range

101–250 employees

Short description

Mount Pleasant Waterworks is a public water and wastewater utility serving approximately 90,000 people in Mount Pleasant, South Carolina, operating RO treatment, 560 miles of water lines, and 500+ miles of wastewater lines funded by user rates.

Ownership category

akta.pro rank

Product category

Water Utility Services

NAICS

Water, Sewage and Other Systems (2213), Water Supply and Irrigation Systems (221310), Sewage Treatment Facilities (221320), Water and Sewer Line and Related Structures Construction (237110)

SIC

Water Supply (4941), Sanitary Services (4950), Pumps & Pumping Equipment (3561), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Pump Stations, Lift Stations & Booster Stations Construction (IMAFAGAD)

akta.pro secondary industries

Dewatering & Groundwater Control (Wellpoints, Deep Wells, Cutoff Systems) (IMAFAOAF), Field Operations & Repair Services (Emergency Response, Leak Repair, Crew Dispatch) (EUANAKAL)

Keywords

• Water utility services
• Wastewater treatment
• Drinking water supply
• Water distribution
• Wastewater collection

Headquarters

HQ city

Mount Pleasant

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Water Service Rates: Monthly water service charges consisting of a fixed Basic Facility Charge per Residential Equivalent Unit (REU) plus a four-tiered Volumetric Rate based on water consumption. The tier structure incentivizes water conservation.
2. Wastewater Service Rates: Monthly wastewater service charges based on water consumption, with the same four-tiered volumetric rate structure. Outdoor water use via irrigation meters is exempt from wastewater charges.
3. Tap/Connection Fees: Fees charged for new service connections to the water and wastewater system, reinvested into infrastructure.
4. Septic System Maintenance Program: Monthly subscription program at $15/month for septic system inspections, pump-outs, and optional repair coverage up to $3,000.
5. Service Line Care Program: Monthly program at $5.95/month covering water service line leaks and wastewater service line clogs/blockages, with up to $7,500 annual repair coverage.
6. Irrigation Meter Installation and Service: One-time installation fees plus ongoing service charges for separate irrigation meters that exempt outdoor use from wastewater charges.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Mount Pleasant Waterworks is a public water and wastewater utility that provides drinking water supply, treatment, and distribution, along with wastewater collection and treatment, to approximately 90,000 people in Mount Pleasant, South Carolina. The utility draws groundwater from the Charleston Aquifer via deep wells, processes it through four Reverse Osmosis treatment plants, and distributes it through 560 miles of water lines, while collecting and treating an average of 9.6 million gallons of wastewater per day through 500+ miles of wastewater lines. It supplements these core services with customer support programs including backflow prevention, FOG compliance, irrigation metering, service line care, and septic system maintenance.

Product overview

Mount Pleasant Waterworks is a public water and wastewater utility providing drinking water and sewer services to approximately 90,000 people in Mount Pleasant, South Carolina. The core offering consists of water supply and treatment (sourced from the Charleston Aquifer via Reverse Osmosis and supplemented with purchased surface water) and wastewater collection and treatment. The WaterSmart customer portal serves as the primary customer-facing digital product for account management, usage tracking, and bill payment. Additional service modules include backflow prevention, FOG management, irrigation meters, and several financial assistance programs (Service Line Care, Septic Maintenance, Customer Care, Clean Water Credit, Round Up), plus billing adjustment services for leaks and pool fills.

Differentiator

Problem solved

Functional benefit

Products and services

• Water Supply & Treatment Services Provides drinking water to approximately 90,000 people sourced from the Charleston Aquifer via six deep wells and four Reverse Osmosis treatment plants, supplemented with purchased surface water from Charleston Water System. Includes 560 miles of water lines, five deep wells, eight tanks with 12 million gallons storage capacity, and over 5,000 fire hydrants.
• Wastewater Collection & Treatment Collects, transports, and treats wastewater from homes and businesses through over 500 miles of wastewater lines and over 160 pump stations to two water resource facilities. Treats an average of 9.6 million gallons per day.
• WaterSmart Customer Portal Customer online account management system enabling water usage tracking, leak alerts, bill viewing and payment, paperless billing enrollment, form submissions, and household water use messages. Accessible via web portal and mobile app.
• Backflow Prevention Program Managed service program for annual backflow prevention device testing, scheduling, and reporting. Customers can also self-manage by hiring SCDES-certified third-party testers.
• Fats, Oils & Grease (FOG) Removal Program Compliance program for food service establishments, multifamily dwellings, and automotive facilities including regular inspections, permit management, and FOG device management via iBackflow portal.
• Irrigation Meters Separate dedicated outdoor water meters exempt from wastewater charges, providing 9,200-gallon monthly allowance for irrigation use. Requires backflow prevention device installation.
• Service Line Care Program Monthly subscription program at $5.95 covering leaks in water service lines and clogs/blockages in wastewater service lines, with up to $7,500 annual repair coverage limit.
• Septic System Maintenance Program Two-tiered maintenance program starting at $15/month: Option I includes annual inspections and five-year pump-outs; Option II adds repair coordination with up to $3,000 coverage per five-year cycle.

Quantifiable outcome

• Delivers drinking water to 90,000 people
• +3 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability1 record

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Town of Mount PleasantcoreStrategic or Co-development PartnerMunicipal partnership for Clean Water Credit Program funding, shared goal of providing clean drinking water, and coordination on water and sewer infrastructure projects.
• Charleston CountycoreStrategic or Co-development PartnerPartnership on Clean Water Credit Program providing up to $4,500 in additional credits for income-qualified Charleston County residents transitioning from septic to sewer.
• Charleston Water SystemcoreTechnology or IntegrationPurchase of treated surface water from Bushy Park Reservoir and Edisto River to supplement groundwater supply and meet customer water demand. Water treated by conventional treatment and disinfected with chloramines.
• South Carolina Department of Environmental Services (SCDES)coreOthersRegulatory oversight of water utilities, sets standards for drinking water quality, issues boil water advisories, and provides guidelines for backflow prevention and FOG programs.
• Water MissionminorStrategic or Co-development PartnerNonprofit organization dedicated to providing access to safe, clean drinking water to communities in need. Recipient of Round Up Program donations from MPW customers.
• U.S. Environmental Protection Agency (EPA)coreOthersFederal regulatory agency setting drinking water standards including Lead and Copper Rule, Maximum Contaminant Levels for PFAS, and health advisories.
• Charleston County Community DevelopmentcoreStrategic or Co-development PartnerContact for income qualification process for Charleston County Clean Water Credit, helping low-income residents access funding for septic-to-sewer connections.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Charleston Water System: Neighboring South Carolina water and wastewater utility that supplies treated surface water to Mount Pleasant Waterworks. Directly comparable in scale, regulatory environment, customer base, and full water-plus-wastewater service model.
• Berkeley County Water & Sanitation Authority: South Carolina water and wastewater utility operating in the greater Charleston region. Comparable as a regulated municipal utility serving residential and commercial customers with rate-based revenue and similar infrastructure mix.
• Beaufort-Jasper Water & Sewer Authority: Regional South Carolina water and wastewater utility on the coast. Comparable in operating model, regulatory environment, and coastal climate exposure to Mount Pleasant Waterworks.
• North Charleston Sewer District: South Carolina special-purpose district providing wastewater collection and treatment. Comparable in scale and regulatory environment, with overlapping service area in the Charleston region.
• Dorchester County Water & Sewer: South Carolina water and wastewater utility serving the Charleston metro periphery. Comparable as a regulated municipal utility with similar customer mix and infrastructure profile.

Broad incumbents

• American Water Works Company: Largest investor-owned water and wastewater utility in the United States. Operates the same core business model as MPW across multiple states, providing a benchmark for utility economics, regulatory engagement, and rate-base growth at national scale.
• Essential Utilities (formerly Aqua America): Large multi-state water and natural gas utility with regulated and rate-based revenue model. Comparable core water/wastewater utility operations, though at materially larger scale and broader geographic footprint.
• California Water Service Group: Investor-owned water utility serving customers across California, Washington, New Mexico, and Texas. Comparable in core regulated water delivery business with rate-base growth tied to infrastructure investment and customer expansion.
• SJW Group: Water utility holding company operating regulated water utilities across multiple states. Comparable in core business model — rate-based revenue, infrastructure-intensive operations, regulatory oversight — though larger and more geographically diverse.
• Middlesex Water Company: Investor-owned water and wastewater utility serving New Jersey and Delaware. Comparable as a regulated, rate-based water utility with similar customer-type mix and infrastructure-heavy operating model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCOGn5l-GzyivDRNQfKHMKbw
• Facebookfacebook.com/MPWaterworks
• LinkedInlinkedin.com/company/mount-pleasant-waterworks
• Instagraminstagram.com/mp.waterworks
• Xx.com/MPWaterworks

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Mount Pleasant Waterworks