Delaware legislation · 153rd General Assembly
Delaware HB458: Water Backflow Preventers/Prohibitions
Status: Signed into law, July 23, 2026
AN ACT TO AMEND TITLE 16 OF THE DELAWARE CODE RELATING TO BACKFLOW.
What the bill says
An act to amend title 16 of the delaware code relating to backflow.
From the introduced text, June 4, 2026:
AN ACT TO AMEND TITLE 16 OF THE DELAWARE CODE RELATING TO BACKFLOW. Section 1. Amend § Chapter 79, Title 16 of the Delaware Code by making deletions as shown by strike through and insertions as shown by underline as follows: § 7911A. Backflow. (a) For purposes of this section: (1) "Backflow" means the movement of water back in the direction from which it was flowing. (2) "Backflow preventer" means a device that prevents backflow. (3) "Backsiphonage" means backflow caused by negative pressure, which occurs when there is a drop in water pressure resulting in the water flowing back into the water service line. (4) "Low hazard building" means a building in which any backflow that does occur meets the following conditions: a, Occurs only by backsiphonage. b. Does not create a health risk or health hazard. c. Does not disrupt the service of piped water for human consumption or impair the potability of that water. d. Does not pose a risk to any fresh water supply. e. The pumping system involved does not connect to a treatment system used to convey wastewater, fertilizers, or chemicals, or that is used to provide fire protection. f. The water system involved does not draw from more than 1 aquifer without a backflow preventer on the discharge line of each well. (b) Subject …
Sponsors
- Sean Lynn (D, 31) · primary sponsor
- William Paradee (D, 17)
- Frank Burns (D, 21)
- Jeff Hilovsky (R, 4)
- Jeffrey Spiegelman (R, 11)
Latest actions
- : Signed by Governor
- : Passed By Senate. Votes: 14 YES 6 NO 1 NOT VOTING
- : Suspension of Rules in Senate
- : Reported Out of Committee (Executive) in Senate with 4 On Its Merits
- : Assigned to Executive Committee in Senate
- : Passed By House. Votes: 37 YES 4 ABSENT
- : Amendment HA 1 to HB 458 - Passed In House by Voice Vote
- : Amendment HA 1 to HB 458 - Introduced and Placed With Bill
- : Reported Out of Committee (Health & Human Development) in House with 10 On Its Merits
- : Introduced and Assigned to Health & Human Development Committee in House
Votes
- Passed (2/3) (June 30, 2026): 14 yea, 6 nay, passed
- Passed (2/3) (June 25, 2026): 37 yea, 0 nay, passed
Common questions
- What is HB458?
- HB458 is a bill in the Delaware Legislature (153rd General Assembly): Water Backflow Preventers/Prohibitions.
- What does HB458 do?
- In its own words: An act to amend title 16 of the delaware code relating to backflow.
- What is the status of HB458?
- Signed into law as of July 23, 2026. Latest action: Signed by Governor (July 23, 2026).
- Who sponsored HB458?
- Sean Lynn (D, 31), with 4 co-sponsors.
- Where is the official record for HB458?
- On the Delaware Legislature website: https://legis.delaware.gov/BillDetail?LegislationId=143431
Source: official Delaware record. Tracked by Delilah, AI for legislation across all 50 states and Congress.