The 50,000 Utility Problem, and What Florida Looks Like From Inside It
On the 92 percent of community water systems the institutional data market barely covers, starting in Florida.
When I started building a grant lifecycle workflow for Florida water utilities earlier this year, I assumed the hard part would be the packet itself. Federal grant applications are notoriously tedious, but tedious is solvable. What I didn’t expect was that the harder problem would come before the packet, at the step where you identify which utilities are even eligible. I needed a working list of Florida’s community water systems with current population, source type, and compliance history. That list turned out to be harder to assemble than the packet it was supposed to feed.
This essay is about why that’s true, and what it means for anyone trying to serve, fund, or acquire the roughly 46,800 community water systems that are invisible to the infrastructure data providers most people rely on.
What counts as a “community water system”
The Environmental Protection Agency defines a community water system as a public water system that serves at least fifteen service connections used by year-round residents, or that regularly serves at least 25 year-round residents. This is the category that matters for households: if you have tap water at home, it almost certainly comes from a community water system.
The federal count is well-documented. According to EPA’s public summary statistics, approximately 51,000 community water systems operate in the United States, collectively serving just under 300 million people.1 Of those, about 4,200 systems, or 8 percent of them, serve more than 82 percent of the total population. The other 92 percent of systems, roughly 46,800 of them, serve the remaining 18 percent.2
That’s the first thing that surprised me when I started reading the actual data: American water infrastructure is bimodal. A small number of very large systems serve most of the country, and a very large number of small systems serve the rest. The systems in the second group are where most of the operating challenges, compliance exposure, and funding questions sit, and they are the systems the institutional data market barely covers.
EPA and the Safe Drinking Water Act use a standing definition for what counts as small in this universe: a public water system that serves 10,000 or fewer people. By that definition, more than 92 percent of the nation’s community water systems are small.3 The threshold is not arbitrary. Federal technical assistance programs, small-system variance eligibility, and most state capacity-development programs anchor to it.
Who tracks what
If you work in infrastructure finance, the providers you’re likely to know are S&P Global, Moody’s, Fitch, Bluefield Research, and Bloomberg. These providers cover the universe of water utilities that issue municipal bonds, publish audited financial statements, or operate at a scale where an analyst can reasonably justify the time to build a model. That universe is, roughly, the top few hundred systems by population served.
The Congressional Research Service, citing EPA’s Drinking Water Infrastructure Needs Survey, notes that approximately 81 percent of community water systems serve fewer than 3,300 individuals.4 That’s about 41,000 systems. Those systems generally don’t issue rated debt. They don’t file audited statements with the MSRB. They’re not in the coverage universe of the large analytical providers. In most cases, what exists publicly about them is their PWSID (the federal identifier), a population count, a source water type, and whatever compliance and enforcement history has been reported to EPA’s Safe Drinking Water Information System and surfaced on the ECHO enforcement portal.
This is not a criticism of the institutional data providers. They serve a real market, and the economics of their business don’t work for a 500-connection system in a county most people have never heard of. But it creates a structural gap: the data layer that allows an engineering firm to do business development, a private equity fund to screen acquisitions, or a grant writer to assemble an application for small utilities has to be built from primary EPA sources rather than bought from a vendor.
The Florida picture
Florida had 1,585 active community water systems at the end of calendar year 2024, according to the Florida Department of Environmental Protection’s most recent Annual Compliance Report.5 That figure is one of three federally defined categories of public water system that FDEP tracks; the others are non-transient non-community systems and transient non-community systems, which together bring the state’s active public water system count to 4,965. The community systems are the subset that serve year-round residents, and they are the subset this essay is about.
Florida is also among the states with the heaviest concentration of lead service lines in the country.6 EPA’s seventh Drinking Water Infrastructure Needs Survey, published in 2023, estimated that approximately 9.2 million lead service lines are in operation nationally, with replacement costs ranging from roughly $5,300 to $9,000 per line based on survey data.7 A meaningful share of that national backlog sits inside Florida.
The national cost picture, according to EPA’s 7th Drinking Water Infrastructure Needs Survey as summarized by the Congressional Research Service, is $648.8 billion in 2022 dollars over twenty years for drinking water infrastructure needs overall.8 Approximately 67 percent of that estimate is for projects to repair or rehabilitate water system distribution and transmission networks. These are EPA’s own figures, compiled under a mandate from the Safe Drinking Water Act and used to allocate state revolving fund money.
The practical consequence is that Florida’s community water systems, taken as a group, are carrying a meaningful share of a national capital need that is an order of magnitude larger than the total funding currently authorized by the Infrastructure Investment and Jobs Act. Every small utility facing a lead service line inventory deadline, a PFAS monitoring requirement, or a distribution system repair backlog is inside that gap.
What the data says and what it doesn’t
Here is what is actually available in the public record for any given Florida community water system, if you know where to look.
From EPA’s Safe Drinking Water Information System, accessible through the SDWIS Federal Reports Search and the ECHO enforcement portal, you can retrieve: the system’s PWSID, its federal classification, its population served, its primary source water type, its ownership type, its activity status, its health-based violation history over the trailing 36 months, its monitoring and reporting violations, its enforcement actions, and the date of the most recent site visit.9 These fields are not complete for every system, but they are uniform, they are machine-readable, and they update on a quarterly cadence.
What’s not available in the same uniform way is everything that matters for capital planning. Rate structures live on utility websites or in rate case filings with the Florida Public Service Commission for investor-owned systems. Capital improvement plans are published, if at all, in local government agendas and board packets. Consumer Confidence Reports are distributed annually but not aggregated centrally. Service area boundaries were only partially mapped at the federal level as of 2024, though EPA’s Community Water System Service Area Boundaries dataset, updated in September 2025, has significantly improved that coverage.10
The practical result is that seeing a complete picture of any single small system requires joining at least four or five public sources, most of them not designed to be joined. For a utility manager, that’s annoying. For someone trying to operate a grant pipeline across dozens of systems, or screen a region for acquisition candidates, or understand where compliance risk is concentrated, it’s closer to prohibitive. The time cost compounds with every additional system in scope.
What this means depending on where you sit
For a business development director at a Florida engineering firm, the implication is that the leads most people compete for are the ones that show up on DemandStar or in board agendas that make it into a Google Alert. The earlier signals, the ones that come from compliance pressure and capital need building inside a small utility, are available in the public record but not in a usable form. Picking them up is systematic work. The firms that do it well have someone who has built a routine for pulling SDWIS and ECHO data on a schedule and cross-referencing it against USDA Rural Development and state SRF funding cycles. Most firms don’t have that person, and the ones that do tend to keep it to themselves.
For a grant writer inside a utility or a consulting practice serving utilities, the implication is that a meaningful fraction of the time spent on any application goes to reassembling data that already exists in federal systems. USDA Rural Development’s Water and Waste Disposal Loan and Grant program requires a specific evidence trail. The Drinking Water State Revolving Fund requires another. Much of the underlying information is the same; the packaging is not. A grant writer who has done ten applications has reassembled the same population and violation data ten times.
For an infrastructure investor screening for utility acquisition candidates, the implication is that the due diligence cost per candidate is roughly constant whether the target serves 1,500 connections or 50,000. Institutional data providers can price a screen at scale for the large end of the market. For the small end, the work is manual either way.
For a utility manager, the implication is different and probably more familiar. You already know which systems in your region are struggling, which ones have good grant writers, which ones are about to face a compliance cliff. What you don’t have is a way to convert that local knowledge into a defensible, data-backed case when you need outside capital or a state agency’s attention.
What I’m doing with this
I’ve spent the last several months working through Florida systems one at a time, reading what EPA publishes, joining it against FDEP’s records, and trying to build a coherent view of which systems are most exposed, which are most fundable, and which are most likely to face binding compliance deadlines in the next eighteen months. The tool I’m building, Arid Insights, exists to do that joining deterministically, from public sources, with every claim traceable back to its origin document.
I’m not an engineer and this essay is not engineering analysis. I’m not going to tell you which treatment technology a utility should adopt or what a specific CIP should cost. Those are questions for licensed professionals with sector experience, and I defer to them on that. What I can tell you is what the public data says about which systems are in what state, and how that picture changes as you move through the state.
Fields of Thought is where I’ll be publishing what I find. Florida first, public data only, slow enough that the numbers can be checked. The next several essays will go deeper on specific pieces: what the federal compliance landscape looks like for small systems between now and the end of 2027, what the Florida rate picture actually shows, how the grant funding competition is shaping up, and where the state’s community water systems sit in terms of the lead service line replacement deadline.
If you work inside this world and something I write is wrong, I’d rather hear it from you than keep repeating the mistake. Corrections get filed publicly and noted on the original essay. My email is at the bottom of this site.
What I keep noticing
A few things have surprised me since I started working with this data.
The first is how much compliance information exists and how little of it is discoverable if you don’t already know the PWSID you’re looking for. ECHO is an excellent enforcement research tool once you know which system you want to research. It is not a good tool for finding systems that share a pattern of distress. The search interface is built around looking up a known entity rather than filtering a universe of systems by signal. Most of the people I’ve talked to who work inside this sector know this and have built their own workarounds. None of the workarounds are standardized, and none of them survive when the person who built them moves to another job.
The second is how heavily the public narrative around water infrastructure skews toward the largest utilities. When Bloomberg or the New York Times covers a water story, it’s almost always a city system: Flint, Newark, Jackson, Baltimore. Those stories matter, and the coverage is warranted. But they create an impression that the American water infrastructure problem is a big-city problem, when by volume it is a small-system problem with big-city exceptions. The 41,000 systems serving fewer than 3,300 people each are where most of the operational and capital stress sits, and they are also where the narrative is quietest.
The third is how the terminology in this sector is not consistent. “Small utility” can mean a system serving 10,000 or a system serving 300 depending on who is talking. “Distress” can mean financial stress, compliance stress, or operational stress, and the same utility can be in one of those categories without being in the others. When I started, I assumed the definitions were settled. They are not, and writing about this sector means being explicit about which definition is in play in any given sentence.
Call to action
If you run or support a Florida community water system and want to know how your system looks across federal compliance and grant eligibility signals, I’ll run a free one-system pre-screen against USDA Rural Development and Drinking Water State Revolving Fund criteria, using only public EPA and Census data. No sales pitch. Reply to this email or send a PWSID to cortez@fieldsofthought.com.
Disclaimer
This content is for informational purposes only. It does not constitute investment, legal, or engineering advice. Data presented is drawn from public EPA, Census, and Florida state sources and was current as of the publication date. Your results will vary. Consult qualified professionals before making decisions.
Sources
Office of Disease Prevention and Health Promotion, Healthy People 2030, "Safe Drinking Water Information System (SDWIS)." Based on EPA SDWIS federal data. https://odphp.health.gov/healthypeople/objectives-and-data/data-sources-and-methods/data-sources/safe-drinking-water-information-system-sdwis
Ibid. Of the approximately 51,000 community water systems, 4,221 (8 percent) serve more than 246 million people (82 percent of the population served by community water systems).
U.S. Environmental Protection Agency, "Small Drinking Water Systems Variances." https://www.epa.gov/sdwa/small-drinking-water-system-variances
Congressional Research Service, "Small Water Systems: Selected Safe Drinking Water Act (SDWA) Provisions," Report R47315. https://www.congress.gov/crs-product/R47315
Florida Department of Environmental Protection, "2024 Annual Compliance Report" (August 2025). https://floridadep.gov/water/source-drinking-water/documents/2024-annual-compliance-report
The Pew Charitable Trusts, "More Federal Funding Needed to Improve Drinking Water, EPA Study Finds," September 2023, citing EPA's 7th Drinking Water Infrastructure Needs Survey. https://www.pew.org/en/research-and-analysis/articles/2023/09/25/more-federal-funding-needed-to-improve-drinking-water-epa-study-finds
U.S. Environmental Protection Agency, "7th Drinking Water Infrastructure Needs Survey and Assessment," September 2023. https://www.epa.gov/system/files/documents/2023-09/Seventh%20DWINSA_September2023_Final.pdf. Per-line replacement cost range cited is the 25th to 75th percentile from the survey ($5,328 to $9,015 in 2021 dollars).
Congressional Research Service, "Drinking Water Infrastructure Needs: Background and Issues for Congress," Report R47878, citing EPA's 7th DWINSA (2022 dollars: $648.8 billion). https://www.congress.gov/crs-product/R47878
EPA ECHO SDWA Data Download Summary and Data Element Dictionary. https://echo.epa.gov/tools/data-downloads/sdwa-download-summary
U.S. Environmental Protection Agency, "Community Water System Service Area Boundaries" (Version 2, September 2025). https://www.epa.gov/ground-water-and-drinking-water/community-water-system-service-area-boundaries