ANM Environmental Services are a family run business that specialise in the maintenance and repair of sewage treatment plants and pump stations (Klargester, Titan, Entec). ANM Environmental Services can reduce your existing maintenance contracts by around 40-50%.Highly competitive service, maintenance, call-out rates for Klargester and any other sewage treatment plant and pump stations in the Beds, Berks, Bucks, Herts, Northants and Oxfordshire areas.