Use the address to identify responsibility
80121 and 80122 include postal addresses associated with both Littleton and Centennial; the city table also lists Greenwood Village for 80121. These postal codes are not water-district boundaries. Check the utility account and actual municipality before arranging work.
Southgate is one local infrastructure operator. Its FAQ directs water-bill questions to Denver Water while asking customers to report low or absent pressure to Southgate. Apply that advice only when Southgate is the district for the property.

Give pressure changes some context
Southgate lists regulators, softeners, recent plumbing work and irrigation among possible household causes of pressure loss. A main break or utility repair can also affect supply. Tell us whether one tap or the whole building is affected and whether neighbors report the same change.
A pressure complaint alone is not proof of a concealed leak. If there is also unexplained meter use or visible dampness, describe both observations without deciding that they share a cause.
Keep access and ownership clear
For townhomes, rented space or shared landscaping, identify which valves, pipes and rooms are private and which need management approval. Do not close a shared shutoff to test one room.
Southgate records connections at its mains. Existing utility or property records may help an investigation, but they do not establish where a pipe has failed. A paved or shared access route needs an agreed plan before repair begins.
Set a useful inspection brief
Call us with the street address and the symptom that prompted the inquiry. Ask about the inspection offered, charges and any access restrictions. Separate finding the water source from opening finishes, replacing pipe and drying affected materials so each decision has a clear scope.
Explore the problem at your property
Hidden pipe leaks
A stain inside a wall, ceiling or cabinet.
Hidden pipe leaks guide02Slab leak detection
Moisture or unexplained warmth at floor level.
Slab leak detection guide03Underground water leaks
Wet soil along a possible water service line.
Underground water leaks guide04Irrigation leaks
Water loss around a sprinkler zone or valve.
Irrigation leaks guideReference notes
Local boundaries and technical guidance have limits. Check the address and the current requirements with the relevant authority.