To achieve this, any site water and sewerage infrastructure must meet the requirements of the relevant water company and comply with relevant legislative standards.
Er mwyn cyflawni hyn, rhaid i unrhyw seilwaith dŵr a charthffosiaeth ar y safle fodloni gofynion y cwmni dŵr perthnasol a chydymffurfio â safonau deddfwriaethol perthnasol.