TMSC Sewer Segment Repairs Project

This project consisted of the excavation and removal of an 18-inch PVC sewer line in preparation for the installation of a new 171-foot long, 18-inch PVC sewer line. In addition to the installation of the new line, repairs in other segments of the sewer pipes included removal of root intrusions, sewer main cleaning, air testing, and television inspection.

Additional services included the installation of a permanent gravel access road; the restoration of disturbed areas that were not covered by gravel road, mulch, and seed; and the addition of a manhole riser to lift a segment of the sewer.


The Importance of Public Works

What are public works?

Public works include a broad range of services that our municipalities provide to us every day. From water and sewer services, to sanitation, to salting and plowing the roads in the winter and making sure potholes are filled in the spring and summer. Public works keep our cities and towns running smoothly and efficiently.

Who performs public works?

Some public works roles are filled by municipal employees, like water plant operators; others are filled by public utility employees, like Orange & Rockland workers; still others are filled by employees of companies such as engineering firms and construction contractors.

What do public works employees do?

In many instances, they are on call and must be ready to respond to a water main break, plow the streets during a blizzard, repair a sewer line, or repair power outages after a thunderstorm. Those who are involved in the public works field work behind the scenes to make sure that residents are able to enjoy the basic necessities and the quality of life that is expected within a municipality.

Without public works, potholes would incapacitate vehicles. Without public works, garbage would not be collected but would instead be allowed to pile up, leading to a rampant increase in the rodent and wild animal population in residential areas and ultimately lead to a rise in illness and disease. Public works employees may not always enjoy the limelight, but their jobs are of the utmost importance.

As we enjoy running water, paved roads, and electricity, we should take a moment to appreciate the people who work behind the scenes, sometimes tirelessly, to provide us with these necessities.


Town of Wallkill Sludge Dewatering Project

The existing dewatering equipment at the Wallkill Wastewater Treatment Plant was 26 years old and in need of replacement. The equipment is operated seven days per week for six hours per day. Current operators were unable to produce a sludge cake with greater than 13% solids, resulting in very high disposal costs.

An evaluation was performed to determine the most effective means of dewatering. Adjustments to MLSS and volatile solids of sludge were made and sludge was processed by multiple vendors utilizing centrifuge, screw press, and belt press equipment. Based on the study, KC recommended installation of the new belt press.

KC replaced the existing two-step dewatering system with a one-step dewatering system. The existing system pumped the sludge from a holding tank with polymer added and sent it to the gravity belt thickener; then it was pumped to a second holding tank. From the second holding tank, the sludge was pumped with polymer added to the belt press. The sludge was finally deposited into the dump trailer below.

The new system pumps sludge from either holding tank with polymer added to the combination gravity / belt press unit to a conveyor system to be deposited in the dump trailer. The existing polymer system, which consists of four 1,000 gallon mixing tanks with polymer, was replaced with two small polymer mixing systems, reducing the start time of the dewatering process. The existing polymer pumps were no longer needed and only two sludge pumps were required. The new system is capable of dewatering the same amount of sludge in half the amount of time as the old system with more consistent output. The new equipment produces a sludge cake with up to 18% solids, reducing disposed costs by up to $100,000 annual of current rates.


Infrastructure Week Day 4: Wastewater

Tri-Municipal Sewer Commission Surface Aeration Basin Replacement

Wastewater is the dirty little secret no one likes to talk about. Nevertheless, managing our nation's wastewater is of the utmost importance.

No infrastructure plan is complete without wastewater management. It can impact the health of residents, strengthen or weaken the appeal of a locality, and affect the environment.

As the nation’s population continues to grow, wastewater management has become increasingly crucial. Over the next 20 years, the U.S. is expected to gain more than 56 million wastewater treatment system users. This indicates the need for wastewater infrastructure improvements.

About 14,748 wastewater treatment plants currently serve nearly 240 million Americans, or 76% of the U.S. population. In its current state, our wastewater infrastructure suffers from 23,000 to 75,000 sanitary sewer overflow events every year, according to the U.S. Environmental Protection Agency. These facts demonstrate the need for increased wastewater infrastructure funding.

At KC Engineering and Land Surveying, P.C. (KC), our wastewater treatment group has designed, constructed, and helped to operate over 70 facilities. We work with government, industrial, and private clients to meet a full range of wastewater related needs. We approach each project with innovative and creative expertise to deliver comprehensive engineering services that solve the most intricate wastewater challenges from concept through design, construction, and operation.

With projects like the Tri-Municipal Sewer Commission Compost Permit Renewal, Wallkill Raw Sewage Pump Replacement, and Wappingers Falls Sanitary Sewer Pipe TV Inspections, KC has helped to increase capacity and improve the performance of existing treatment facilities. KC strives to meet strict water discharge policies, conserve energy, and reduce environmental impact.


Infrastructure Week Day 2: Water

DCWWA Shore Haven Water Pipe

Water is a vital resource, but with a rise in deteriorating infrastructure and underfunded programs like the Drinking Water State Revolving Fund (DWSRF), we’ve run into a nationwide problem.

In recent years, we’ve witnessed water crisis on a national scale in places like Flint, Michigan, whose citizens haven’t had access to clean water in nearly four years; Texas, Florida, and especially Puerto Rico, where last year’s hurricanes damaged municipal water services; and the Southwest United States, where drought conditions continue to worsen.

Over one million miles of pipes work to deliver water around the country, most of that aging infrastructure having been laid numerous decades ago. Now more than ever, America requires government action to upgrade insufficient water infrastructure. Clean, reliable drinking water is a commodity that everyone, without exception, should have access to.

At KC Engineering and Land Surveying, P.C. (KC), our water supply group works to create sufficient, long-term resolutions to provide safe drinking water. With a group of skilled water, wastewater, civil, and environmental engineers, KC is able to provide lasting solutions to various municipalities, residential developments, and many more.

With projects like the Wallkill Water System Interconnect, Kosuga Well 7 Development, and LaGuardia Airport Trunk Main Relocation, KC continues to play a vital role in ensuring the functionality of filtration systems, water resources, and water treatment.