---
type: "Bill"
title: "Environment – Graywater – Residential Use"
description: "Environment – Graywater – Residential Use"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2018"
identifier: "SB 496"
citation: "Maryland SB 496 (2018)"
classification: ["bill"]
subjects: ["Environment", "Environment", "Department of", "Environmental Matters", "Housing", "Insects", "Pest Control", "Plumbing", "Rules and Regulations", "Toilets", "Water", "Weights and Measures"]
status: "enacted"
primary_sponsors: ["Ready"]
version_count: 1
action_count: 17
vote_count: 3
first_action: "2018-01-29"
last_action: "2018-05-15"
source: "openstates"
source_identifier: "ocd-bill/b1863a5b-dbf3-419e-80e0-fa2cb149d165"
source_url: "http://mgaleg.maryland.gov/webmga/frmMain.aspx?id=SB496&stab=01&pid=billpage&tab=subject3&ys=2018rs"
source_hash: "2a62ee907e25ece8179cf4520995f10b0640edf6438508c159edc4b729a9ff36"
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-md"]
---

# Maryland SB 496 (2018) — Environment – Graywater – Residential Use

## Version chain

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

1. **Bill Text** (committee substitute) — [source](http://mgaleg.maryland.gov/2018RS/bills/sb/sb0496f.pdf)

## Votes

- On Third Reading — **45–0** (pass) · upper
- On Third Reading — **135–0** (pass) · lower
- On third reading — **41–0** (pass) · upper

## Sponsors

- Ready — primary (person)
- Bates — cosponsor (person)
- Hough — cosponsor (person)
- Salling — cosponsor (person)

## Timeline

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

- **2018-01-29** First Reading Education, Health, and Environmental Affairs `referral-committee`
- **2018-01-29** Hearing 2/13 at 1:00 p.m.
- **2018-02-26** Favorable with Amendments Report by Education, Health, and Environmental Affairs `committee-passage-favorable`
- **2018-02-27** Favorable with Amendments {534837/1 Report Adopted `committee-passage-favorable`
- **2018-02-27** Second Reading Passed with Amendments
- **2018-03-01** Special Order until 3/5 (Senator Jennings) Adopted
- **2018-03-05** Third Reading Passed (45-0) `passage`
- **2018-03-06** First Reading Environment and Transportation `referral-committee`
- **2018-03-19** Hearing 3/28 at 1:00 p.m.
- **2018-04-02** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
- **2018-04-03** Favorable with Amendments {820817/1 Report Adopted `committee-passage-favorable`
- **2018-04-03** Second Reading Passed with Amendments
- **2018-04-06** Third Reading Passed with Amendments (135-0) `passage`
- **2018-04-09** Senate Concur - House Amendments
- **2018-04-09** Third Reading Passed (41-0) `passage`
- **2018-04-09** Passed Enrolled
- **2018-05-15** Approved by the Governor - Chapter 705 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/b1863a5b-dbf3-419e-80e0-fa2cb149d165`. Confidence: reported (aggregated from official Maryland legislature records).