---
type: "Bill"
title: "AN ACT CONCERNING WATER POLLUTION CONTROL AUTHORITIES."
description: "AN ACT CONCERNING WATER POLLUTION CONTROL AUTHORITIES."
jurisdiction: "us/states/ct"
legislature: "Connecticut General Assembly"
session: "2018"
identifier: "HB 5509"
citation: "Connecticut HB 5509 (2018)"
classification: ["bill"]
subjects: ["Ordinances", "Reports", "Sewer use charges", "Water pollution control authorities", "Energy and Environmental Protection", "Department of", "Public Utilities Regulatory Authority"]
status: "enacted"
primary_sponsors: ["Cassano, Steve", "Osten, Catherine A.", "Somers, Heather B.", "Stafstrom, Steven J."]
version_count: 2
action_count: 22
vote_count: 2
first_action: "2018-03-09"
last_action: "2018-06-14"
source: "openstates"
source_identifier: "ocd-bill/99ce6003-13bc-4a49-ac8d-691c86fb6b82"
source_url: "ftp://ftp.cga.ct.gov/pub/data/bill_info.csv"
source_hash: "37e7fd5e6c8c8c56c53fad1ab43309b4bffa22e2bd167eaeb80e7c5b48ac2466"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ct"]
---

# Connecticut HB 5509 (2018) — AN ACT CONCERNING WATER POLLUTION CONTROL AUTHORITIES.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **R00** (committee substitute) — [source](ftp://ftp.cga.ct.gov/2018/tob/h/2018HB-05509-R00-HB.htm)
2. **R01** (committee substitute) — [source](ftp://ftp.cga.ct.gov/2018/tob/h/2018HB-05509-R01-HB.htm)

## Votes

- House Roll Call Vote 295 AS AMENDED — **148–1** (pass) · lower
- Senate Roll Call Vote 340 ADOPT — **36–0** (pass) · upper

## Sponsors

- Cassano, Steve — primary (person)
- Osten, Catherine A. — primary (person)
- Somers, Heather B. — primary (person)
- Stafstrom, Steven J. — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2018-03-09** REF. TO JOINT COMM. ON Planning and Development `referral-committee`
- **2018-03-12** PUBLIC HEARING 0316
- **2018-03-26** Joint Favorable Substitute `committee-passage-favorable`
- **2018-03-26** FILED WITH LCO
- **2018-04-03** REFERRED TO Office of Legislative Research AND Office of Fiscal Analysis 04/09/18
- **2018-04-10** RPTD. OUT OF LCO
- **2018-04-10** FAV. RPT., TABLED FOR HOUSE CALENDER
- **2018-04-10** HOUSE CALENDAR NUMBER 254
- **2018-04-10** FILE NO. 380
- **2018-05-09** HOUSE ADOPTED HOUSE AMEND. SCH. A
- **2018-05-09** HOUSE PASSED, HOUSE AMEND. SCH. A `passage`
- **2018-05-09** TRANSMITTED PURSUANT TO JOINT RULE 17
- **2018-05-09** FAV. RPT., TAB. FOR CAL., SEN.
- **2018-05-09** SENATE CALENDAR NUMBER 565
- **2018-05-09** RULES SUSPENDED
- **2018-05-09** SEN. ADOPTED HO. AMEND. SCH. A
- **2018-05-09** SEN. PASSED, HO. AMEND. SCH. A
- **2018-05-09** ON CONSENT CALENDAR /IN CONCURRENCE
- **2018-05-30** PUBLIC ACT 18-174 `became-law`
- **2018-06-01** TRANSMITTED TO SECRETARY OF THE STATE
- **2018-06-01** TRANSMITTED BY SECRETARY OF THE STATE TO GOVERNOR
- **2018-06-14** SIGNED BY GOVERNOR `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/99ce6003-13bc-4a49-ac8d-691c86fb6b82`. Confidence: reported (aggregated from official Connecticut legislature records).