Water Risk Profile — ZIP 78502
Flood risk, local cost data, climate factors, and insurance context for your ZIP code.
Flood Risk
Medium
Cost Range
$1,500–$8,500
Avg Response
42 min
NFIP
State participates
Local Climate & Risk Factors
McAllen area water damage risk includes Texas's variable climate threats. Dallas-Fort Worth's Blackland Prairie clay soils create the highest slab leak frequency in the country — clay expansion and contraction stress post-tension slab foundations, causing supply line failures. Houston and coastal Texas face hurricane flooding (Harvey deposited 60 inches in Harris County in 2017), bayou system flooding, and combined sewer overflow. Texas homeowners should document any water damage event carefully — insurers in Texas have specific prompt-pay obligations and the state has one of the strongest homeowner enforcement mechanisms through the Texas Insurance Code.
Flood-prone areas: Las Milpas colonias near the Hidalgo County resaca network flood when resacas overflow in heavy rain. Sharyland Plantation retention ponds exceed capacity in major events. Pecan Village, built on former Rio Grande floodplain near 10th Street in the 1960s, has aging clay-tile storm drainage prone to collapse and blockage.
Water Category Cost Table — McAllen, TX
Extraction & drying cost per square foot by IICRC water category
| Water Category | $/sq ft |
|---|---|
| Category 1 — Clean Burst supply line, clean appliance overflow | $2.72–$6.74 |
| Category 2 — Gray Dishwasher, washing machine, toilet bowl (no feces) | $6.74–$8.16 |
| Category 3 — Black Sewage backup, floodwater, toilet overflow with feces | $9.59–$12.1 |
Estimates exclude reconstruction (drywall, flooring replacement). National benchmarks: Cat 1 $3.75–$4.25, Cat 2 $4.10–$6.50, Cat 3 $7–$7.50/sq ft — adjusted for McAllen market (3.2–11/sq ft range).