Lehigh County’s water damage profile is shaped by the Lehigh Valley’s creek system, a dense urban core in Allentown, and rapidly growing suburban townships to the west. Little Lehigh Creek and Jordan Creek cut through residential neighborhoods and back up during major storm events. Allentown’s older housing stock carries lateral pipe failures and combined sewer overflow risk, while Macungie and Upper Macungie townships deal with hard water mineral scale that fails supply lines inside walls. Understanding which risk applies to your property determines the right response strategy.

Why Lehigh County Homes See More Water Damage

Little Lehigh Creek and Jordan Creek both pass through densely populated Allentown neighborhoods, and their watersheds drain a significant portion of the county. During heavy rain events – particularly Nor’easters and remnant tropical systems – creek levels rise fast and inundate basements and first floors in low-lying residential areas of Whitehall and Catasauqua. Allentown’s older neighborhoods, built on clay-bearing limestone soils, see foundation seepage from hydrostatic pressure after sustained wet periods. Newer construction in Lower Macungie and Emmaus uses PVC pipe, but homes built in the 1960s and 1970s often still have original cast iron laterals nearing end of life.

Sewage Backups in Allentown and Older Lehigh Neighborhoods

Allentown’s sewer system handles both stormwater and sanitary flows in older sections of the city, and combined sewer overflows during heavy rain events send Category 3 water into basements in Fountain Hill and Catasauqua. Separately, aging clay lateral pipes throughout the county’s older residential areas crack under root pressure and freeze-thaw stress, creating sewage backup events independent of storm events. We classify the event correctly at arrival, contain the affected area, remove all Category 3-contacted materials, and decontaminate with EPA-registered products before reconstruction begins.

Water Damage Categories (IICRC S500 Standard)

Water damage falls into three categories under the IICRC S500 standard, each reflecting the contamination level. Getting the category right on the initial assessment is critical to a safe and effective restoration outcome. The three categories: Cat 1 clean water, Cat 2 gray water with contaminants, Cat 3 black water requiring complete decontamination.

• Category 1 (clean water), burst supply pipes, overflowing sinks, appliance supply-line failures. Water itself is not contaminated, but becomes Category 2 within 24-72 hours if left standing.
• Category 2 (gray water), washing machine discharge, dishwasher overflow, toilet overflow without solids. Contains biological or chemical contaminants; affected carpet padding and drywall typically must be removed rather than dried in place.
• Category 3 (black water), sewage backups, river flooding, storm drain overflow, or Category 1/2 water left more than 72 hours. All porous materials in contact must be removed; antimicrobial treatment is required before reconstruction.

Lehigh County’s combined sewer sections in Allentown, Fountain Hill, and Catasauqua make Category 3 backups common during heavy storms.

What to Do While You Wait for Our Crew

1. Turn off the water source at the main supply valve – find it near the water meter in the basement or utility closet. Locate this valve before you ever have a water emergency – it’s worth knowing in advance. The faster you shut it off, the less extraction our crew needs to do.
2. Cut power to affected rooms at the breaker panel if water is near outlets, fixtures, or the electrical panel. When in doubt, treat water near electricity as an emergency and stay out of the area. This step prevents electrical injury, which is the most immediate danger in a water event.
3. Do not use household fans or A/C – household equipment spreads the problem instead of containing it. The engineering of professional drying equipment is fundamentally different from household fans. Wait for our crew before attempting any drying measures.
4. Photograph and video every affected area before our crew moves anything – your adjuster will need this evidence to process the claim. More documentation is always better than less. We recommend both photos and video – the more evidence, the better.
5. Call Sunrise at (215) 399-6538 for 60-minute emergency response.

Treat sewage-contaminated water as a biological hazard – do not contact it without PPE – sewage contains active pathogens including fecal bacteria, viruses, and parasites that cause serious infection. Wait for our crew to arrive – sewage cleanup is not a DIY job.

When to Call a Professional

Discoloration on ceilings or walls, soft drywall, or persistent moisture odors are not solvable with consumer tools. Water damage that has reached insulation, framing, or subfloor material requires industrial drying equipment. Each hour converts restorable materials into disposal costs. Sunrise responds within 60 minutes, documents to IICRC S500 standards, and bills your insurance carrier directly.