Morrisville Water Hardness & Quality Report (2026)

Morrisville, North Carolina, in Wake County adjacent to Research Triangle Park and Raleigh-Durham International Airport — a technology hub and one of the fastest-growing communities in the North Carolina Research Triangle — receives its municipal water from the Town of Morrisville purchasing supply wholesale from the Town of Cary or Raleigh Water Utilities, which draws from Jordan Lake (New Hope Lake) in Chatham County on the Cape Fear River drainage. Morrisville's position at the RTP-Cary-Raleigh convergence makes it part of the Triangle's regional water supply infrastructure.

The moderately hard 128 mg/L hardness and TDS of 281.5 mg/L reflect the central North Carolina Piedmont's mixed watershed geology. The Jordan Lake watershed drains across the Triassic Durham Basin — Newark Supergroup red sedimentary rocks (Sandstone Creek, Chatham Group formations) with calcareous cement and feldspar contributions — and older Precambrian Piedmont metamorphic rocks (Carolina Terrane volcanic and metasedimentary assemblage) with minimal carbonate. The Triassic basin's moderate mineral yield produces a consistently moderately hard supply shared across the Triangle metro communities drawing from Jordan Lake.

At 128 mg/L, Morrisville's water is moderately hard — typical for the Research Triangle area. Scale forms gradually in kettles and appliances over months, the dishwasher benefits from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling of heating appliances is the standard schedule. The PFAS level of 6.7 ppt warrants a certified drinking water filter — the Research Triangle Park technology and pharmaceutical corridor, along with military installations in the region, contribute to elevated PFAS across the Wake County water supply.