Deposit of maps and certificates
12. Every river purification authority shall keep available at its principal office, at all reasonable times, for inspection by the public free of charge–
(a)the maps referred to in the definition of “estuary” in regulation 2(1), which relate to estuaries wholly or partly within its area;
(b)the map showing sensitive areas and high natural dispersion areas deposited with the authority for the purposes of regulation 3(1);
(c)particulars of certificates issued by it under regulations 4(2), 5(3) and 5(5)(b).