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NJ · MediumNew Jersey holds October 15 hearings on a tighter power plant carbon cap from…PA · MediumPennsylvania requires proof of a water supplier before towns give final appro…PA · MediumPennsylvania board to consider stricter protection for 16 stream basins on Oc…NY · MediumNew York court blocks commercial tax class for vacant residential lots outsid…NJ · LowDelaware River basin proposal would make New Jersey water suppliers report th…NY · MediumNew York high court upholds SoHo and NoHo conversion fee; Supreme Court confe…NY · HighNew York City adopts fast-track land-use review and housing appeals board rul…PA · HighFederal: Philadelphia, Pittsburgh and central Pennsylvania counties may face…NY · MediumNew York appeals court holds brownfield cleanup kept Buffalo scrap yard's gra…NJ · LowNew Jersey Meadowlands authority sets October 20 hearing on changes to Kearny…
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Water supply

Water allocation and withdrawals, aquifers, river basin commissions and proof of water service. What changed, the rules that apply and the dates ahead for projects in New Jersey, New York, Connecticut and Pennsylvania.

Latest briefings

  1. MediumPennsylvania

    Pennsylvania requires proof of a water supplier before towns give final approval to development plans

    From December 7, subdivision and land development plans served by public or community water need documented supply arrangements before final approval, though proof of adequate capacity is not required.

    FinalWater supplyZoning & land use
  2. LowNew Jersey

    Delaware River basin proposal would make New Jersey water suppliers report their largest customers' use

    A Delaware River Basin Commission proposal, not yet in force, would require public water suppliers in four states to report monthly use by customers taking 50,000 gallons a day or more.

    ProposedWater supply
  3. MediumConnecticut

    Connecticut extends as-of-right accessory units to special-act towns and limits water company hookup charges

    From October 1, 2026, towns that zone under special acts must allow one accessory dwelling unit as of right, and investor-owned water companies face the connection-fee limits already applied to towns and authorities.

    FinalHousingZoning & land useWater supply
  4. MediumNew Jersey

    New Jersey Highlands panel seeks comment by November 18 on possible land and water plan changes

    Recommendations on water use, sewer and water extensions, impervious cover and historic review could lead to amendments to the regional plan governing development in the Highlands.

    ProposedProtected regions & speciesZoning & land useWater supply
  5. LowConnecticut

    Connecticut moves to renew water-use permits that expire January 2027; comments closed September 18

    DEEP's four general permits for water diversions, including testing, cooling and remediation uses, are up for reissuance, and anyone relying on current coverage should compare the new terms before January 18, 2027.

    FinalWater supply
  6. MediumNew Jersey

    New Jersey appeals court upholds Pinelands limits on aquifer water diversions; ruling not approved for publication

    On July 15, 2026 the Appellate Division affirmed the Pinelands Commission's amendments to its water management rule, which set a 50,000 gallon-per-day diversion threshold. The opinion is not for publication, and Commission staff have asked that it be published. A data center application in Monroe Township is also before the Commission.

    In courtWater supplyProtected regions & species
  7. MediumPennsylvania

    Pennsylvania requires larger data centers to report energy and water use by July 2027

    A budget-season amendment to the Fiscal Code makes data centers above 10 megawatts file annual energy and water reports with environmental regulators, with reported penalties of $10,000 a day.

    FinalData centersWater supplyEnergy & grid

Rules 16

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