Capital Program Planning for Connecticut Water Utilities

by | Oct 21, 2026

Connecticut · Water & Wastewater Utilities

Connecticut just moved 250,000 water customers from private to public. Your capital plan has to keep up.

A $2.4 billion ownership change at Aquarion, a $2-billion-plus wastewater program in Hartford, WICA surcharges that reset every six months, and lead and PFAS mandates arriving with federal dollars attached. For a utility CFO or capital lead, every one of those forces reshuffles the projects on your list. Invizion helps Connecticut utilities re-sequence a capital portfolio in a click — and defend every decision.

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The bottom line: Connecticut just moved a quarter-million water customers from private to public in a contested $2.4B deal, while a $2-billion-plus wastewater program, WICA rate mechanics, and funded lead and PFAS mandates all pull on the same capital dollars. The utilities that win the decade will be the ones whose plans can absorb that volatility and stay defensible.
$2.4B1
Paid by the South Central Connecticut Regional Water Authority to buy Aquarion Water in July 2026, moving ~250,000 Connecticut customers from investor-owned to public.
$2B+2
Committed to the MDC’s Clean Water Project in greater Hartford to cut combined sewer overflows under a federal consent decree.
~8,0003
Estimated lead service lines statewide — concentrated in Bridgeport, Waterbury, New London and Greenwich (~1,500 alone).
$235.5M4
Federal Bipartisan Infrastructure Law water dollars flowing to Connecticut since 2022.

The Connecticut Landscape

Four forces are moving your project list at once

None of these is theoretical, and none of them waits for your next budget cycle. Together they mean the capital plan you approved last year may already be the wrong plan.

Ownership & Consolidation

The biggest ownership change in a generation

On July 1, 2026, the South Central Connecticut Regional Water Authority closed a $2.4 billion purchase of Aquarion Water from Eversource — ~$1.6 billion for the utility plus roughly $800 million in assumed debt — moving nearly 250,000 customers across 59 towns from investor-owned to public ownership.1

The deal only closed after PURA blocked it in November 2025, a court ordered reconsideration, and PURA reversed course in March 2026.1 Officials pledged no rate increase for six months, then projected annual increases of 6.5% to 8.35% over the following decade — a capital and rate trajectory that is now being rebuilt from scratch.1

Aging Pipe & Renewal

A century of pipe, replaced one percent a year

Connecticut Water alone maintains roughly 1,850 miles of main and targets replacing about 1% of it annually. It passed the milestone of one million feet — about 190 miles, a little over 10% of its network — renewed since 2008, at roughly $350 per foot.5

At a one-percent pace, full renewal is a hundred-year cycle. Every foot of that program competes for the same dollars as compliance and growth — and the sequencing between them is exactly what boards and regulators scrutinize.

Wastewater & CSOs

Combined sewers under a federal consent decree

The Metropolitan District (MDC), which serves eight member towns and roughly 500,000 residents around Hartford, is spending more than $2 billion on its Clean Water Project to stop combined sewer overflows into local waterways under a federal consent decree and a DEEP consent order.62

The centerpiece South Hartford Conveyance and Storage Tunnel — four miles of 18-foot bore, 200-plus feet down — is a single line item larger than many utilities’ entire capital plan. Programs at that scale leave no room for sequencing error.2

Compliance — Lead & PFAS

Two funded mandates, on the same clock

Connecticut DPH estimates roughly 8,000 lead service lines statewide, concentrated in environmental-justice communities such as Bridgeport, Waterbury, Middletown, New London and Greenwich — which alone may hold about 1,500.3 EPA sent Connecticut $27.4 million dedicated to finding and replacing them in 2026.7

PFAS is the second front: the state received $9.5 million to address PFAS in drinking water, and monitoring and treatment obligations are still expanding.8 New obligations don’t replace the renewal backlog — they stack on top of it, and something on the list has to move.

Who Runs Connecticut’s Water

A public-heavy system — regional authorities and one big investor-owned holdout

Connecticut is unusual: its largest water systems are quasi-public authorities and municipal corporations, and the 2026 Aquarion sale pushed the balance further toward public ownership. The main investor-owned provider left, Connecticut Water, is rate-regulated by PURA. The pressures are shared; the accountability path differs.

Public authorities & municipal systems

Governed by boards & representative bodies · not rate-regulated by PURA

South Central CT Regional Water Authority (RWA) ~430,000 served · 15-town New Haven region9
Aquarion Water Authority ~250,000 customers · 59 towns · public since July 20261
The Metropolitan District (MDC) 8 member towns · ~500,000 residents · Hartford6
Norwich Public Utilities, New Britain, Bristol Municipal water & sewer systems
Numerous small community systems Where funding gaps hit hardest

The RWA now operates Aquarion through the newly created Aquarion Water Authority, sharing executive leadership and board.1

Investor-owned utilities

Rates & capital recovery regulated by PURA

Connecticut Water Company 107,000+ customers · 60 towns · H2O America (formerly SJW Group)11
Torrington Water Company Investor-owned Litchfield County system
Aquarion (until mid-2026) Formerly Eversource-owned; among the 7 largest U.S. IOUs10
Small & specialty IOUs Hazardville, Avon, and other PURA-regulated systems

Virtually all of Connecticut Water’s main-replacement work since 2008 has been recovered through WICA rather than full rate cases.5

Rate-Setting & Oversight

Every capital dollar has to be defensible

Whether you answer to PURA, a regional authority board, or a municipal council, the question is the same: why this project, why now, why at this cost? Connecticut’s oversight bodies are asking it harder than ever.

  • Public Utilities Regulatory Authority (PURA) sets rates and capital recovery for investor-owned utilities. Its WICA surcharge lets water companies recover eligible main replacement between rate cases, capped at 10% cumulatively and 5% in any single year, with a separate RAM revenue true-up.12
  • The Aquarion sale showed PURA’s teeth. PURA rejected the $2.4B transaction in November 2025 before approving it under court order in 2026 — a reminder that even a public-benefit deal is not a formality.131
  • Rate cases are contested. In Connecticut Water’s last general case, PURA cut roughly $15.1M from the request — approving about a 5.06% increase against a ~20% ask and a 9% ROE versus 10.4% requested.14
  • Connecticut DPH Drinking Water Section holds Safe Drinking Water Act primacy — lead service line inventories, PFAS monitoring, and the compliance capital that follows.15
  • CT DEEP administers the state Clean Water Fund and enforces the CSO consent orders that drive Hartford-area wastewater capital.16

Funding On The Table

The money is moving — can your plan absorb it?

Connecticut utilities have more capital funding available than they’ve had in a generation. The constraint is no longer only dollars — it’s readiness: which projects are shovel-ready, which qualify, and how the timing lines up with everything else on the list.

  • ~$72.1M in FFY2025 federal DWSRF capitalization for Connecticut — $10.9M base plus IIJA supplementals of $24.9M general, $28.65M for lead service lines, and $7.64M for emerging contaminants. The comprehensive project list runs 184 projects seeking ~$1.1B.17
  • $235.5M in total BIL water funding has flowed to Connecticut since 2022, including nearly $61.4M announced for FY2024, roughly half as grants or forgivable principal.4
  • $73.5M in DWSRF funding was announced for Connecticut in 2023 under the Bipartisan Infrastructure Law.18
  • $27.4M for lead lines (2026) and $9.5M for PFAS — dedicated federal awards on top of the base SRF, aimed at inventory, replacement and treatment.78
  • State Clean Water Fund — DEEP’s low-interest loan and grant program for wastewater and CSO projects, the backbone of financing for the MDC-scale programs.16

Where Invizion Fits

Turn a moving Connecticut picture into a defensible capital plan

Invizion is scenario-based capital portfolio optimization built for water utilities. When the supply picture shifts, a mandate lands, or a grant comes through, you don't re-plan by hand for weeks — you model it and decide with a record you can stand behind.

1

Model the “what-if” before it's forced on you

A new mandate, a failed main, a grant with a deadline — build the scenario and see the impact on the whole portfolio, side by side with today's plan.

2

Re-sequence 500 projects in a click

When priorities move, Invizion re-orders the portfolio automatically — accelerating, stretching, or deferring projects against the constraints you set, not weeks of spreadsheet surgery.

3

Give regulators or your board a defensible record

Every prioritization and trade-off is captured. When you're asked “why this project, why now,” the answer is documented — not reconstructed after the fact.

Connecticut Water, In Brief

Questions Connecticut utility leaders are asking

Short, sourced answers — the same facts we’ll dig into on a call, in the context of your system.

Who owns Aquarion Water now?
As of July 1, 2026, the South Central Connecticut Regional Water Authority owns Aquarion, having closed a $2.4 billion purchase from Eversource. Aquarion’s ~250,000 Connecticut customers across 59 towns are now served through a new public entity, the Aquarion Water Authority. The deal was blocked by PURA in November 2025 and approved only after a court ordered reconsideration.1
Who sets water rates in Connecticut?
PURA regulates rates and capital recovery for investor-owned utilities such as Connecticut Water. Public systems — the RWA, the MDC, and municipal utilities — set rates through their own boards and representative bodies rather than PURA. Either way, capital spending has to be justified to a governing body and, increasingly, to ratepayers.12
What is WICA and why does it matter for capital planning?
The Water Infrastructure and Conservation Adjustment lets PURA-regulated water companies recover eligible main-replacement costs through a surcharge between full rate cases, capped at 10% cumulatively and 5% in a single year. It has funded virtually all of Connecticut Water’s main replacement since 2008 — but because it resets semi-annually and only covers qualifying projects, it puts a premium on sequencing the right work in the right order.125
How many lead service lines does Connecticut have?
Connecticut DPH estimates roughly 8,000 lead service lines statewide, though the exact count is still being refined through inventories. They are concentrated in lower-income communities such as Bridgeport, Waterbury, Middletown and New London, with Greenwich alone suspected to hold about 1,500. EPA sent $27.4 million in 2026 dedicated to finding and replacing them.37
How much federal water funding is available in Connecticut?
Connecticut has received about $235.5 million in Bipartisan Infrastructure Law water funding since 2022, on top of its base SRF. For FFY2025 the state’s DWSRF capitalization totaled roughly $72.1 million — including $28.65 million for lead lines and $7.64 million for emerging contaminants — and the drinking water project list runs about $1.1 billion in requested assistance. Much of the supplemental money is available as grants or forgivable principal.417
How does Invizion help Connecticut water utilities plan capital?
Invizion is scenario-based capital portfolio optimization for water utilities. It lets you model how an ownership change, a funding award, a WICA reset, or a compliance deadline reshuffles your whole project list, re-sequence the portfolio automatically, and keep a defensible record of every decision for PURA, your board, or ratepayers. The best next step is a short first meeting to look at it against your own program.

Go Deeper

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About the Author

GB

Guy Barlow

President, Invizion

Guy Barlow leads Invizion, a capital lifecycle management platform for water and wastewater utilities. He has spent two decades at the intersection of utility capital programs, funding, and analytics, helping utilities make faster, more defensible capital decisions.

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See what a defensible capital plan looks like

Book a 20-minute first meeting. We'll talk through the forces reshaping your capital program and show how Invizion helps you keep the plan current and defensible — no slides, no pressure.

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This briefing was last reviewed September 2026.

Sources

  1. CT Mirror, “Regional Water Authority closes $2.4 billion purchase of Aquarion” — $2.4B (~$1.6B + ~$800M debt), ~250,000 customers, 59 towns, PURA timeline, 6.5–8.35% projected increases, July 2026. ctmirror.org
  2. The Clean Water Project (MDC) — $2B+ program, South Hartford Conveyance & Storage Tunnel (4 mi), federal consent decree and DEEP consent order, 2025–2026. thecleanwaterproject.com
  3. CT Mirror / Connecticut Public, “CT to receive $27M to find and replace lead pipes” — ~8,000 lead service lines statewide, Greenwich ~1,500, EJ communities, June 2026. ctmirror.org
  4. U.S. EPA, “Nearly $61.4 million for Connecticut drinking water, wastewater and stormwater” — $235.5M total BIL water funding to CT since 2022; ~half as grants/forgivable principal, Feb 2024. epa.gov
  5. Connecticut Water, “Reaches Milestone in Water System Infrastructure Renewal” — ~1,850 mi of main, 1M ft (~190 mi, ~10%) replaced since 2008 at ~$350/ft, ~1%/yr, mostly via WICA, 2023. ctwater.com
  6. Wikipedia, “Metropolitan District Commission of Connecticut” — 8 member towns, ~500,000 residents in service area, chartered 1929, public not-for-profit municipal corporation, Clean Water Project. en.wikipedia.org
  7. U.S. EPA, “EPA Announces $27.5 Million to Reduce Lead in Drinking Water in Connecticut” ($27.4M to CT), 2026. epa.gov
  8. U.S. EPA, “EPA Announces $9.5 Million for Connecticut to Address PFAS in Drinking Water,” 2026. epa.gov
  9. Wikipedia, “South Central Connecticut Regional Water Authority” — ~430,000 people, 15-town region, ~55 MGD, reorganized as a public authority in 1977. en.wikipedia.org
  10. Wikipedia, “Aquarion Water Company” — founded 1857, Eversource acquired 2017 for $1.675B, among the seven largest U.S. investor-owned water utilities. en.wikipedia.org
  11. Connecticut Water, “About Us” — 107,000+ customers in 60 CT towns; subsidiary of H2O America (Nasdaq: HTO, formerly SJW Group), 2025. ctwater.com
  12. Town of New Hartford / Connecticut Water — WICA and RAM explained; WICA capped at 10% cumulative and 5% per year between rate cases. newhartfordct.gov · ctwater.com
  13. WFSB, “PURA rejects $2.4 billion Eversource plan to sell Aquarion Water” — PURA denial, November 2025. wfsb.com
  14. Fox61, “PURA sets base rates for CT Water Company customers” — Connecticut Water requested ~$20.3M (~20%), PURA approved ~$5.2M (5.06%), ~$15.1M cut, 9% ROE vs 10.4% requested. fox61.com
  15. Connecticut Department of Public Health, Drinking Water Section — PFAS and lead service line program, Safe Drinking Water Act primacy, 2024–2026. portal.ct.gov
  16. Connecticut DEEP — Clean Water Fund and combined sewer overflow (CSO) consent orders for municipal wastewater. portal.ct.gov
  17. Connecticut DPH, “Drinking Water State Revolving Fund Annual Intended Use Plan SFY 2026” — FFY2025 caps: $10.9M base, $24.9M IIJA general, $28.65M lead, $7.64M emerging contaminants (~$72.1M); 184-project list ~$1.1B. portal.ct.gov
  18. U.S. EPA, “EPA Announces $73.5 Million for Drinking Water Infrastructure Upgrades in Connecticut” — DWSRF under the Bipartisan Infrastructure Law, April 2023. epa.gov