The Importance of Water & Wastewater Infrastructure Investment

As stated so eloquently by The Value of Water campaign, “…virtually all sectors of the economy rely on water.” In their report completed in 2017, water, wastewater and stormwater engineers associated with the campaign enumerated the vast number of business sectors that rely on sound water and wastewater infrastructure to successfully conduct and maintain their work, “from semiconductor manufacturing, to agriculture, to hotels and restaurants.”

But what happens when these profoundly significant resources begin to age and become unreliable, or even dangerous? What happens when the United States, and the world at large, does not allocate the proper amount of funds to crumbling water and wastewater infrastructures? 

water tanks
Historic water tank in Warwick, NY

We are now seeing the consequences of poorly funded infrastructure due to our current unprecedented circumstances brought on by COVID-19. The Guardian cited a study in early March from the UN World Water Development report that expressed serious concern over “underfunding of water infrastructure around the world.” Such underfunding prevents access to clean water, which has become the first line of defense against COVID-19 as the CDC advises everyone to wash frequently with soap and water. However, even before and beyond the COVID-19 pandemic, underfunded water infrastructure has led many communities to suffer challenges related to poor drinking water quality and the unaffordability of access to clean water.

In her address to the Committee on Transportation and Infrastructure within the U.S. House of Representatives, Angela Lee, director of Charlotte Water in North Carolina, explores the economic strain non-federally funded water infrastructure can have on low-income families. When the federal government does not support infrastructure projects, water and sewer rates soar, making it increasingly difficult for ratepayers with lower incomes to keep up. Lee states, “In many communities [in the U.S.] the lowest 20 percent of earners pay almost one-fifth of their income towards their water bill.” Drawing from her own observations in Charlotte, NC, Lee reveals, “Charlotte Water serves just over 285,000 accounts but provided 58,636 payment arrangements in 2018. Public Utilities may be forced to delay much needed projects to avoid overburdening customers.”

Luckily, in late April, members of the U.S. Senate Committee on Environmental and Public Works (EPW) John Barrasso and Tom Carper, released two bills, the America’s Water Infrastructure Act of 2020 (AWIA 2020) and the Drinking Water Infrastructure Act of 2020 (DWIA 2020). The AWIA 2020, helpfully summed up here,

includes approximately $17 billion in new federal authorizations for infrastructure investments across the United States, which are intended to increase water storage, provide protection from floodwaters, deepen nationally significant ports, maintain the navigability of inland waterways across the country and repair aging wastewater and irrigation systems.

The DWIA 2020 includes an estimated $2.5 billion and, according to a memo released by the senate committee, seeks “to provide resources and technical assistance to communities facing drinking water emergencies that present substantial danger to health.” The bill will also provide “robust funding for grant programs to help water utilities invest in and deploy new and emerging, but proven, technology essential to improve water and energy efficiency, reduce emissions, and expand ratepayer affordability.”

The grant programs the DWIA 2020 could potentially support within New York State include the NYSEFC’s Drinking Water State Revolving Fund, which funds municipally and privately owned public water systems that provide drinking water; the Water Infrastructure Improvement Act (WIIA), which provides water quality protection across New York; the USDA’s Water and Waste Disposal, Rural Development Grant Program, a program that supports clean and reliable drinking water systems in rural areas; and the Community Development Block Grant, which funds water and sewer main improvements. Other funding programs available in NYS are the Engineering Planning Grant, which seeks to advance water quality projects to construction, and the Clean Water State Revolving Fund, which finances wastewater and water quality improvement projects to municipalities throughout New York State. Follow the embedded links for more information on the benefits each grant provides, and how to apply. You can also follow this link for a comprehensive list of other grants offered in New York State.

What funding has already been included in NYS’s 2020 budget? The Executive Budget, as formally announced by New York State, includes $2.5 billion for clean water infrastructure, “beginning with a new $500 million appropriation to support drinking water infrastructure, wastewater infrastructure, and water quality protection” and $300 million for the Environmental Protection Fund (EPF), which includes funds allocated to water quality improvement.

p+d continuously strives to remain aware of all funding opportunities and assist the communities we serve through obtaining and administering grant funding. We have worked on a wide variety of grant-funded projects. For example, p+d assisted the Village of Cornwall-on-Hudson with obtaining $1 million in WIIA/IMG grant funding for improvements to the Taylor Road Well Field; these improvements were needed in order to increase resiliency and add additional capacity to the Village’s water supply. We similarly assisted the Town of Gardiner in obtaining an Engineering Planning Grant for an I/I study of their collection system. We’ve also administered Environmental Facilities Corporation (EFC) funding for the Village of Suffern’s Phase 2 Sewer Abatement, which addressed areas in the Village’s collection system that were found to have elevated levels of infiltration and inflow (I/I). Lastly, p+d has worked on a variety of projects associated with the Town of Wallkill’s EFC grant funding, which they received specifically for the development of several new projects within their wastewater collection system. p+d was tasked with managing these funds for the Town while designing the upgrades.

Changing Seasons & Changing Engineering

With the changing seasons comes changes in our methods of engineering. What does it mean for p+d when the trees start to bloom, the ground becomes a bit softer, and the air becomes a bit warmer?

The construction projects that we manage and oversee are largely affected by these changing weather conditions. Specifically in the spring and summertime, the increase of rainfall and moisture in the air can force us as consultants to alter the materials we had originally planned on using in some of our projects. Materials such as “wood, hot melt adhesives and paints” are very susceptible to warming temperatures and moisture in the air as they tend to become less adhesive to particular surfaces. Heat can also cause certain materials to expand, “lead[ing] to misaligned joins during construction.” Winter inevitably brings issues as well—when contractors are met with a frozen ground, it becomes quite difficult for them to conduct key construction tasks such as excavation. Another issue unique to winter-weather conditions is the potential freezing of concrete, which can become “weak, brittle and even flaky” during the pouring process.

Changing weather conditions are so important for engineering and construction firms to consider that the National Center for Atmospheric Research, based in Boulder, CO, created “a prototype web tool, Climate-i Construction […] that applies seasonal outlook data to construction risks.” This invaluable tool tracks weather patterns months in advance to help engineers and construction workers to determine potential weather-related issues that might impact significant construction activities such as pouring concrete or operating a crane. This month specifically, our projects may be impacted by muddier conditions and increased temperatures that may alter our chosen materials.

For us in the water and wastewater industry, we must also contend with changing temperatures and the effects this climate shift might have on the water that exists within the plants where we complete our work. Increased temperatures inevitably alter water chemistry, sometimes causing “higher electrical conductivity” in groundwater, a source from which some water treatment plants receive their supply. High conductivity means that the water contains a large amount of “mineral salts of elements like sodium, calcium and magnesium” and is thus “related to high TDS (total dissolved solids).” For p+d, this means our water treatment designs must place a heavier focus on reducing TDS during the treatment process. While developing designs for septic systems, we also must take in to consideration the best weather conditions under which to perform perc tests, which “measures the rate at which water is absorbed (percolates through) the soil.” The drier the soil, the more easily it will absorb moisture, leading to much better results. During winter and spring when the ground is typically saturated with either snow or rainfall, the perc test is less likely to be effective.

Many wastewater treatment plants have seasonal disinfection limits, meaning the wastewater effluent is not required to be disinfected during late fall, winter and early spring due to reduced microbial action brought on by low temperatures. Operators are now getting their disinfection systems in order for disinfection in the late spring, summer and early fall. WWTP operators also look forward to warmer weather because of the increased microbial action in the wastewater, making it easier to comply with ammonia, TKN and denitrification requirements.

Changes in temperature bring special challenges to our industry that we are always eager to anticipate and address. This season in particular always keeps us on our toes and allows us to use our problem-solving skills to constantly adjust to these changing conditions. We hope you all have a wonderful spring!

Addressing Trihalomethanes in the Town of Wallkill

p+d has completed a study that determined the deficiencies contributing to high levels of trihalomethanes (THM) in the water supply for the Town of Wallkill. THM occur within water systems as a result of the necessary disinfection process used to rid drinking water of naturally occurring microorganisms such as bacteria and viruses. Chlorine, commonly used within the disinfection process, can sometimes react to these microorganisms and create harmful disinfection byproducts such as THM. According to the World Health Organization (WHO), a high level of THM in drinking water can lead to ill effects on the body such as “colon cancer for those aged 60 years or more and bladder cancer among non-smokers.” WHO also explains the significant factors that come together to potentially increase THM levels in drinking water: “the type and concentrations of organic materials in the raw water, the chlorine reaction time, temperature, and chlorination pH.” The study conducted by p+d had to focus on each factor in order to arrive at an effective solution for eliminating the harmful substance.

The Town of Wallkill was required to release a statement to residents in August of 2018 alerting them to the heightened levels of THM and residents were again warned early this year about the potential contaminants.

The Town accepted a proposal from p+d on January 23, which allowed us to evaluate their treatment process, storage system, and distribution network to discover the deficiencies contributing to the high levels of THM. More specifically, we proposed a project to install an agitator within the Town’s water storage tanks and thoroughly clean the inside of the tanks, ridding its walls of any organic materials that might be interacting with the chlorine. The agitator circulates the water to lower its age and prevent thermal stratification.

Most important to us is ensuring that the Town will experience long-term benefits from our evaluation and improvements. We are now in the process of designing the tank rehabilitations and conducting the cleaning that was recommended post-study. Providing continued rehabilitation of the greensand filters at each of the Town’s treatment plants and the installation of a chlorine booster station near the Washington Heights Storage Tanks will allow the Town to maintain a required free chlorine residual of 0.2 mg/l. 

p+d Selected to Complete Trihalomethanes Study

Our team was tasked with evaluating the treatment process, storage system and distribution network in the Town of Wallkill to discover the deficiencies contributing to high levels of THM in the water supply

THM occur within water systems as a result of the disinfection process. All drinking water sources could contain microorganisms such as bacteria and viruses, so the water is disinfected to destroy those microorganisms. Chlorine (by way of liquid sodium hypochlorite) is the most common disinfectant for treating drinking water.  When chlorine is added to water that has natural organic matter, disinfection byproducts develop. THM are the most common type of byproduct. The level of THM in the water is therefore directly related to the organic content of the source water, the amount of chlorine that is added to the water as a disinfectant and the age of the water in the system.

To improve water quality and lower THM levels, our team made several short- and long-term recommendations, including rehabilitating a storage tank in an area where THM levels have exceeded the EPA limit, installing mixers in the tank, and continuing to rehabilitate greensand filters at the Town’s water treatment facilities.

Following the completion of this study, the Town will move forward with projects that will maintain its infrastructure and yield better water quality for the district’s users.

p+d Awarded Arfman Water & Sewer District Formation Project

p+d was awarded a project to formalize the Arfman Water and Sewer Districts in the Town of Wallkill.

arfman

The Arfman Tract Property, the subject of an intermunicipal agreement between the City of Middletown and Town of Wallkill, has historically received water and/or sewer service from the City of Middletown. Recently, several proposed development projects within or adjacent to the Arfman Tract have received approval for development and wish to move forward with construction.

Prior to allowing construction to commence, the municipalities agreed that new water and sewer districts must be formed to consummate the district boundaries and formalize a number of past service arrangements to allow the City to continue to provide needed water and sewer services.

Our team prepared a Map, Plan and Report (MPR) for each district. This report provides both the City and Town with information on key issues associated with continuing to deliver public water and sewer within the proposed district: historical background and precedence for district formation, boundaries of the proposed water and sewer districts, treatment facility for sewage that is collected, source of water to be used, general plan for any required capital improvements, estimated capital cost and operation and maintenance costs.

Following the Town’s and City’s reviews of the MPR, a public hearing was held to address public comments, and the district formation was completed.