Claerwen Dam overflowing, Elan Valley

Watch what your pipes, reservoirs and overflows are doing.

For asset, wastewater and drought teams. One record per overflow, reservoir and company: spills, storage, owner and what changed.

Claerwen Dam overflowing, Elan Valley. Charlie Marshall, CC BY 2.0.

How often did the overflow near me spill?

Every storm overflow in England is monitored: 292,119 spills in 2025, or 20.5 per overflow, down from 31.8 in 2024. Savitram joins the return, the rivers and the companies into one record per overflow.

Savitram water screen built from public data

No regulator holds one shared view of water asset condition.

  • 0.14% a year

    England replaced its water mains at 0.14% a year, a rate that renews the network once every 700 years. National Audit Office

  • 233 reservoirs

    Service reservoirs and tanks in England not inspected for over 10 years, 3.1% of the total. Drinking Water Inspectorate, 2025

  • 27% rise

    Pollution incidents rose 27% from 2019-20 to 2024-25, against a committed 30% cut. Ofwat, Oct 2025

What Savitram does in water.

  • See

    Watch overflows, reservoir storage and river flow from Environment Agency flood, hydrology and weekly drought data.

  • Know

    A record per overflow and reservoir from Environment Agency returns, Ofwat performance data and Defra reservoir counts.

  • Comply

    Draft annual spill returns and asset condition submissions from your records, against Environment Agency and Ofwat requirements.

  • Plan

    Compare leakage, storage and overflow options against drought reports and PR24 allowances, with project dates.

The data behind every water record.

Public registers, read on each publisher's own schedule, joined with your data and Savitram's data.

  • Flood monitoring APIEnvironment Agency · About every 15 minutes
  • Hydrology APIEnvironment Agency · Several times a day
  • Storm overflow annual returnsEnvironment Agency · Yearly
  • Dry weather and drought reportsEnvironment Agency · Weekly
  • Water company performance reportOfwat · Yearly, each October
  • Annual performance reports as dataStream · Yearly

What is coming up.

  • 20 Oct 2026Water Efficiency Lab 2, on customer-side leakage, closes.
  • 29 Oct 2026WICS final determination for Scottish Water, 2027 to 2033.
  • 1 Apr 2027New Scottish Water charges start.

Who uses it.

Asset management directors. Heads of wastewater operations. Water resources and drought managers. Regulatory reporting leads. Chief data officers.

We build and run AI systems on your records, and train your people to use them, so what your experienced staff know stays with the team. 23% of the water workforce is due to retire within a decade.

Check one overflow you already know.