Churchdown Water Hardness & Quality Report (2026)

Severn Trent Water supplies Churchdown, a large village between Cheltenham and Gloucester at the foot of Churchdown Hill — a prominent wooded outlier of Jurassic Limestone rising from the Severn Vale between the two Gloucestershire cities — from the River Severn at Mythe near Tewkesbury blended with Cotswold Jurassic Limestone spring supply, treated at Mythe Water Treatment Works. At 174.5 mg/L (12.2°Clark), Churchdown's water is moderately hard — virtually identical to nearby Bishops Cleeve (173 mg/L, TDS 437.4 mg/L) — confirming the two communities share the same supply zone and the same Severn–Cotswold limestone blend.

Churchdown lies in the Severn Vale between the Cotswold escarpment and the Malvern Hills, in the Severn Trent supply zone that draws on the moderately calcareous River Severn at Mythe and supplements this with Cotswold spring contributions from the Jurassic Inferior Oolite and Great Oolite formations of the Cheltenham fringe. The resulting 174.5 mg/L with TDS 444 mg/L reflects the moderate calcium loading of the Severn-Cotswold limestone blend — a supply character shared by communities from Tewkesbury through Churchdown to Cheltenham across the north Gloucestershire vale.

At 174.5 mg/L, limescale is a noticeable household concern in Churchdown. Kettles benefit from descaling every four to six weeks. The combi-boiler should be fitted with a scale inhibitor and serviced annually. Washing-up liquid requires slightly more product than in softer areas. Taps and shower heads develop moderate limescale deposits within two to three weeks; a monthly wipe with white vinegar keeps fixtures in good condition. The moderately hard supply at Churchdown reflects the Severn–Cotswold limestone blend supply character of the north Gloucestershire vale communities between Cheltenham and Gloucester.