Hertfordshire County Council (Colne Valley Sewerage, &c.) Act 1937
WHEREAS it is expedient to improve the arrangements as regards sewerage and drainage in the city of St. Alban the boroughs of Hemel Hempstead and Watford the urban districts of Barnet Bushey Chorleywood Great Berkhamstead Rickmansworth and Tring the rural districts of Barnet Berkhamstead Hatfield Hemel Hempstead St. Albans and Watford all in the county of Hertford the urban district of Chesham and the rural district of Amersham in the county of Buckingham and the urban district of Potters Bar...