All Roll Calls
Yes: 161 • No: 16
MarylandSB 09402026 Regular SessionSenateWALLET
Environment - Water Quality Testing - Secondary Maximum Contaminant Levels Action Plan
Sponsored By: Shaneka Henson (Democratic)
Signed by Governor
EnvironmentReal PropertyCensusChemical TestsCommunity Facilities and ServicesComplaintsCounties -see also- Chartered Counties; Code Counties; etc.Environment, Department of theEnvironmental HealthEnvironmental Matters -see also- Conserv; Nat Resrce; PollutEquipment -see also- Charging; Med. Equip.; MV Equip; etc.Ethnic AffairsEvictionGrantsHealth, Department ofInvestigations and Inquiries -see also- Crim Bckgrnd InvestLanguage -see also- Communications; LiteracyMobile and Manufactured HomesMunicipal Corporations -see also- Annap; BaltNoticesPenalties and Sentences -see also- Death PenaltyPlans and ProposalsPrices -see also- Consumer Price IndexRacial Matters -see also- Ethnic Affairs; MinoritiesReportsResidential Property -see also- Apartments; CondominiumsRevenue and Taxes -see also- (specific tax)Rural AreasStandards and Best PracticesSunsetSurveys and PollsWater -see also- Coastal Bays; Riv,Str,Lks; Wastewater; etc.Water Pollution
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Bill Overview
Analyzed Economic Effects
4 provisions identified: 2 benefits, 0 costs, 2 mixed.
Fines and appeals for park owners
The Department can issue violations and orders and fine park owners up to $10,000 per violation and up to $5,000 for each month the violation continues. Park owners can request a hearing to appeal an order within 20 days after receiving it.
Fix water problems and protect residents
Within 10 days after test results, the Department must send written notices to the park owner, local health department, the municipality, the requesting resident, and the water supplier. If there is a problem, the notice includes a summary, any violation, steps residents should take, and how cleanup will work. When a problem is found, the Department requires more testing (including multipoint and flow/pressure tests), tells local housing and health agencies, reviews cleanup plans in writing, and notifies residents when cleanup is complete. Park owners must notify residents within 5 days, provide the Department’s contact, offer notices in English, Spanish, and any requested language with interpreter help, post results for at least 120 days, and certify to the Department. Owners must submit a remediation plan within 120 days and follow the Department’s schedule, and must provide reasonable access to safe drinking water or approved filters during cleanup. Owners cannot charge residents for testing or cleanup under this law, and cannot evict or threaten eviction in retaliation for residents using these protections.
State water testing for mobile home parks
The Maryland Department of the Environment starts a mobile home park water testing program by January 1, 2027. Testing rolls out in stages: 25% of parks by Jan 1, 2028; 50% by Jan 1, 2029; 75% by Jan 1, 2030; and 100% by Jan 1, 2031. Parks are prioritized if they are in census blocks with at least 40% minority residents, in geologic risk areas, have resident requests or complaints, use private or community supplies, or are otherwise designated. Outreach and notices are available in English, Spanish, and any other language residents request, and residents are interviewed about water concerns. Qualified professionals must do the sampling, and the Department considers methods that avoid entering homes without consent. Sampling plans test for primary and secondary standards and EPA limits, including color, taste, odor, hardness, iron, calcium, and total dissolved solids, and chemicals with health advisories when suspected. The Department may decline a specific contaminant test if data show it is not near or above standards or if it is already required, may hire third parties to test, and must create a waiting list if demand exceeds capacity.
State plans to improve water quality
The Department must deliver a plan by December 1, 2026 to enforce secondary standards for water color, taste, and odor at community and nontransient noncommunity systems. The plan lists contaminants, proposes enforcement, compares other states, includes a decision matrix, costs, timelines, and stakeholder input. By January 1, 2028, the Department must issue a statewide plan to improve water quality in mobile home parks, with testing status, timelines for untested parks, actions to improve color, taste, and odor, and how resident feedback shaped the plan. The Department also works with local agencies to find grants and other funding for cleanup and enforcement.
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Sponsors & Cosponsors
Sponsor
Shaneka Henson
Democratic • Senate
Cosponsors
There are no cosponsors for this bill.
Roll Call Votes
House vote • 4/13/2026
Third Reading Passed
Yes: 119 • No: 16 • Other: 6
Senate vote • 4/9/2026
Third Reading Passed
Yes: 42 • No: 0 • Other: 4
Actions Timeline
Approved by the Governor - Chapter 286
4/28/2026Returned Passed
4/13/2026SenateThird Reading Passed (119-16)
4/13/2026HouseFavorable Adopted Second Reading Passed
4/11/2026HouseFavorable Report by Environment and Transportation
4/11/2026HouseRereferred to Environment and Transportation
4/10/2026HouseReferred Rules and Executive Nominations
4/10/2026HouseThird Reading Passed (42-0)
4/9/2026SenateMotion Special Order until Later Today (Senator King) Adopted
4/9/2026SenateSecond Reading Passed with Amendments
4/9/2026SenateFavorable with Amendments {143228/1 Adopted
4/9/2026SenateFavorable with Amendments Report by Education, Energy, and the Environment
4/9/2026SenateHearing 3/04 at 1:00 p.m.
2/26/2026SenateHearing canceled
2/26/2026SenateHearing 3/03 at 1:00 p.m.
2/10/2026SenateFirst Reading Education, Energy, and the Environment
2/6/2026Senate
Bill Text
Third Reading
4/9/2026
First Reading
2/10/2026
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