Requiring the department of natural resources to identify specific animal sources of pollutants to a water of the state when determining the water’s inclusion on a list of impaired waters

Where it is now

1. ✓
   Done: IntroducedFebruary 3, 2026
2. ✓
   Done: SubcommitteeFebruary 3, 2026
3. ✓
   Done: House committeeFebruary 10, 2026
4. ✕
   Stopped: Passes the HouseDied when the General Assembly ended
5. Next: Senate committeeFunnel: by March 20, 2026
6. Next: Passes the Senate
7. Next: To the Governor
8. Next: Signed into law

Died when the session ended The General Assembly adjourned on October 2, 2026. Bills that didn’t pass both chambers died. What’s a funnel?

What’s in it

§1251 – 1376. §1313) establishes water quality standards for states.7(b)(4)). Every two years, the department of natural resources (DNR) compiles a list of the state’s impaired waters (303(d) list) for approval by EPA.195). The bill provides that if, in compiling a 303(d) list, DNR determines that pollution is attributable to fecal bacteria, it must designate by percentage each species of animal, if any, that has contributed to the impairment.

From the explanation printed with the bill as introduced, written by the Legislative Services Agency. Amendments adopted later aren’t reflected. Full bill text

House subcommittee

Named February 3, 2026 (as HSB 657). On February 10, 2026 it recommended passage.

• Rep. Heather Hora REmail
• Rep. Dean Fisher REmail
• Rep. Dr. Megan L. Srinivas DEmail

Three legislators hear a bill first and recommend what the committee should do; it’s the best time to weigh in. How to take part

Fiscal note

2 million. Source Department of Natural Resources /s/ Jennifer Acton March 3, 2026 Doc ID 1600931 The fiscal note for this Bill was prepared pursuant to Joint Rule 17 and the Iowa Code. Data used in developing this fiscal note is available from the Fiscal Services Division of the Legislative Services Agency upon request.

• Impaired Waters, DNA Testing to Determine Cause · March 3, 2026

Nonpartisan cost estimates from the Legislative Services Agency’s Fiscal Services Division. The newest is first. Reading a fiscal note

Iowa Code it changes

Amends§455B.195

Read from the bill as introduced. Each links to every bill touching that chapter of the Iowa Code. How the Code works

Family tree

Where this legislation came from and where it went: earlier tries, the versions it moved through this Assembly, and later bills built on it.

Earlier and later bills are matched by wording or an identical title; check the text to be sure it’s the same idea.