Excavation & Underground Utilities in East Hanover, NJ
JWSR LLC is a local, licensed and insured excavation and utility contractor working in East Hanover and across Morris County. East Hanover sits about 25 miles southeast of our Hamburg yard, roughly 40 minutes out, so we can get a crew and the right machine there without a long wait.
JWSR LLC is a licensed and insured excavation and utility contractor based in Hamburg, New Jersey, about 25 miles from East Hanover, working across Morris County. About 97.3% of East Hanover's land area sits inside a public water delivery area, served by East Hanover Twp WD. About 68.5% of the town is inside a sewer service area, the largest run by Parsippany Troy Hills STP, and the rest is on septic. We do the underground work either situation calls for: water and sewer service lines, septic, storm drainage, excavation and restoration. Call 862-268-2510 for a free on-site estimate.
Around East Hanover, we deal with a lot of ledge rock
East Hanover sits in the New Jersey Highlands, where the bedrock is ancient, hard gneiss and granite that often sits close to the surface. Because that rock resists erosion, digging here regularly runs into ledge, and it takes the right equipment to get through it.
We bring in the bigger machines and the tools to break out and remove ledge rock so the job keeps moving, whether it is a foundation, a utility trench, or a septic field. Rocky ground is where experience really shows. That is a big part of what we do here, but it is far from the only thing. We still handle sewer and water lines, septic, grading, driveways, and emergency digs across town.
Helpful guides: Call 811 before you dig. Every job, every time · Understanding excavation costs
Sources: New Jersey's Highlands geology (gneiss & granite bedrock) · NJ Geological Survey bedrock map of Sussex County
Morris County runs from busy suburban neighborhoods to wooded hillsides, and the work follows suit, from tight utility repairs to regrading sloped lots that will not drain.
As a township, East Hanover has the kind of larger properties where septic systems, grading, drainage, land clearing, and long driveways come up most. Whether it is an emergency sewer or water line dig-out, a septic system, a lot that will not drain, or a new driveway, we bring our own equipment and an operator who knows the ground in this part of Morris County. We show up when we say we will, and we leave your property graded and clean.
Services for properties in East Hanover
Septic Installation in East Hanover
New septic systems, replacements, and repairs, permitted and done right.
Learn more →Grading & Drainage in East Hanover
Fix standing water, regrade your lot, and protect your property from erosion.
Learn more →Land Clearing in East Hanover
Clear brush, trees, and stumps and get your lot ready to build.
Learn more →Driveways, Roads & Lots in East Hanover
New driveways, road repairs, and parking lot redos built on a base that lasts.
Learn more →Excavation in East Hanover
Site prep, dig-outs, trenching, and land development for any project.
Learn more →Sewer & Water Lines in East Hanover
Emergency sewer and water line dig-outs, repairs, and full replacements.
Sewer & Water Lines in East Hanover →Some of what we have been building
A look at recent excavation, utility, and site work from around Morris County and northern New Jersey.
What tends to be in the ground in East Hanover
The biggest single stretch of building in East Hanover came in the 1990s, though the township's 4,162 housing units are spread fairly wide across the decades.
Roughly 38% dates to the 1940s through early 1970s. That is the Orangeburg window, and pipe from it is past the age where it can be counted on.
Housing-age figures: US Census American Community Survey 2019–2023 5-year estimates, table B25034. Pipe service lives are documented industry figures. What is actually under any one property varies, so we confirm it on site before we quote a replacement.
Nearly all of East Hanover is on public water
About 97.3% of East Hanover’s land area sits inside a public water purveyor’s delivery area, all of it served by East Hanover Twp WD. Sewer is the other half of that, and here the two do not line up: about 68.5% of East Hanover sits inside a mapped sewer service area against 97.3% for water, a gap of 29 points. In that gap you get houses on town water with their own septic system in the yard, which catches people out when a tank needs work in a town that feels fully built up. All of this is land area rather than houses, and a main running past a property does not mean the property is on it, since plenty kept the well after the main went in.
What replacing a water service involves, and who supplies water in every town we cover.
Source: NJDEP Purveyor Service Areas of New Jersey, edition 2025-07-03, measured against US Census municipal boundaries. NJDEP maps actual delivery areas for public community systems, meaning fifteen or more year-round connections; smaller shared and association systems are real but do not appear. Percentages are share of land area, not share of homes, and a state file can lag a change of ownership. The name on your bill beats any map, including this one.
The part that changes the job here
East Hanover runs its own municipal water system, the East Hanover Township Water Department (PWSID NJ1410001). The water comes from three deep groundwater wells in the Buried Valley Aquifer, and when demand spikes the township buys extra water from New Jersey American Water. The township treats for hard water with polyphosphate and disinfects with chlorine.
East Hanover has no sewage treatment plant of its own. Homes on sewer drain to the Parsippany-Troy Hills wastewater treatment plant under an intermunicipal agreement East Hanover signed on September 14, 1977. That plant is rated 36 million gallons a day, currently averages about 9 MGD, and discharges treated water where the Rockaway and Whippany Rivers meet.
The township's NJDEP service line inventory, signed by the Water Department superintendent in May 2024, counts 4,180 water service lines in town and every one of them is classified non-lead: zero known lead lines, zero galvanized, zero unknowns. So a water line replacement here is about age and leaks, not lead.
Township code makes sewer connection mandatory where a main can reasonably reach the building, and once a house ties in, the old septic system has to be filled in within 60 days under the Township Engineer's rules, with a completion certificate from the Water and Sewer Department. The same chapter bans putting stormwater, groundwater, roof runoff, or subsurface drainage into the sanitary sewer, so sump pumps and French drains cannot go to the sewer line.
Most of East Hanover is inside a sewer service area
About 68.5% of East Hanover’s land area falls inside a mapped sewer service area. The largest share goes to Parsippany Troy Hills STP, with 2 smaller works alongside it. A service area is where sewer is planned and permitted, not a promise that a main runs past your house, so the only way to settle it for one address is to look. Outside it, septic.
Sewer connections, laterals and septic work are all things we do, and which one you need is usually settled in one phone call. Sewer and water line work.
Source: NJDEP Sewer Service Areas, read 2026-09-08, measured against US Census municipal boundaries. Percentages are share of land area, not share of homes. Most polygons in this layer are small on-site treatment works for a single school, campground or business, so read the percentages rather than the count.
If you find water surfacing in East Hanover, call this first
Before you call us, get the water shut off. A leaking service line washes ground out from under whatever sits above it and keeps running until somebody turns the curb valve.
In East Hanover that is East Hanover Township Water & Sewer Department, on 973-888-6080.
The township's own utility at the DPW building on Melanie Lane, staffed weekdays 7 to 3:30. The township publishes no after-hours water number, so outside those hours say it is an emergency when you call and be ready to try the police desk if it rings out.
Once the water is off, the repair is ours. What replacing a water service involves, or what the first hour of a break looks like.
Read off East Hanover Township Water & Sewer Department's own published page and re-checked periodically. If your bill carries a different name, that name is the one with your curb key. Much of New Jersey is served by New Jersey American Water, 1-800-272-1325, 24 hours.
Working in East Hanover
How fast can you get to East Hanover?
East Hanover is roughly 40 minutes from our Hamburg base, so we can usually be out for an estimate quickly, and for a sewer or water line emergency we start moving right away, day or night.
Do you install and repair septic systems in East Hanover?
Yes. Septic installs, repairs, and failed-field excavation are some of the most common jobs we do in Morris County townships like East Hanover. We handle the dig, the tank, and the grading, and we leave the yard clean.
Are you licensed and insured to work in Morris County?
Yes. JWSR LLC is a licensed and insured New Jersey contractor, and we work across Morris County and six other counties. We pull the permits, mark out, and do it by the book.
We also serve these towns near East Hanover
Need excavation in East Hanover?
Free on-site estimates and 24/7 emergency service, about 40 minutes from our Hamburg yard. Call 862-268-2510.
Call 862-268-2510