Uddevalla Municipality limed lakes, waterways and wetlands on Bredfjället and Herrestadsfjället on 13–16 August. A further round is planned later in August. The work is intended to counteract acidification and improve aquatic habitats for fish and crustaceans.
What happened?
The first stage started on August 13 and could last until August 16. Exact spreading location was weather dependent. The lime raises the pH value and neutralizes the acidification effect from sulfur and nitrogen that have been stored in the soil and continue to be leached into the water.
Location
Uddevalla, Bredfjället, Herrestadsfjället
Impact and significance
The municipality's goal is a pH of at least 6 so that species such as perch, pike, roach and crustaceans can live and reproduce. Liming is carried out annually because legacy sulphur and nitrogen deposits continue to affect the water despite lower emissions. The objective and general mechanism are the municipality's description; the page does not show current test series or results after this year's application.
Background
Helicopters are used to reach lakes and wetlands in difficult-to-access terrain. The municipal ecologist is responsible for the liming work. The page links to more information and a spreading plan but does not specify the amount of lime, cost or exact date for the second stage.
Latest update
The first planned period has ended when this text is published. A new stage is expected later in August and may change with the weather. Outdoor visitors should follow the municipality's upcoming announcement and keep a safe distance from the helicopter's work area. This summary is based on the stated public source and describes the state of affairs when the WUA reviewed the material on 17 August 2026. It does not replace the authority, municipality or organizer's own practical information. If dates, times, conditions or execution have changed, the later information on the original page shall be used. Title and text have been editorially reworded to separate verifiable information from the source's own judgments. No data outside the cited material has been used to fill gaps, and the reader should follow the source links for full context. The data has been checked against the page title, date, place, amount and status where such fields exist. WUA has not verified things that the source itself leaves open, for example final costs, number of participants, permission or future results. Such uncertainties are stated in the text and must be followed in later official announcements.
Sources
Related analysis
Reviewed: 2026-08-17. Independent editorial content. WUA Sverige is not affiliated with any political party.