Webinar: Decentralized Wastewater Resources for Tribes

In this webinar recording you’ll learn how to access our clearinghouse of information specifically for wastewater and water operators on WaterOperator.org. You will be shown how to access links to over 15,000 free, publicly available resources, a nationwide calendar, and much more. This webinar was focused specifically on resources that relate to decentralized wastewater for tribes.

The webinar will answer questions such as:

• What is WaterOperator.org?
• What topics does the website cover?
• What onsite wastewater resources are available?
• How to find the Tribal Contact Manager?
• What resources are available for tribal personnel about decentralized wastewater?

Below you’ll find a recording of the training, held in September 2023.

Septic System Contamination Risks

Can a septic system contaminate a well?

Have you ever thought about where the water goes when you flush a toilet? If you have a septic system, this question may be more important than you think. Whether it is the largest advanced wastewater treatment plant in the world or the septic system in your back yard, all wastewater systems need regular maintenance. This will not only extend the life of your system, but it will also help prevent it from potentially contaminating the surface water and groundwater.

How does a septic system contaminate the surface water and groundwater?

Water from your toilets, showers, and other appliances contains harmful bacteria, viruses, and nutrients that could make you sick if it were to enter your well without being properly treated first. Maintenance issues like a full or cracked septic tank or a plugged drainfield can cause untreated wastewater to enter the surface water or groundwater.  
According to the United States Environmental Protection Agency (EPA), the most serious documented problems involve contamination of surface waters and ground water with disease-causing pathogens and nitrates.

Let’s take a peek at a conventional septic system and see how contamination can occur:

Your House:

• Most of the wastewater will generate from the kitchen and bathroom. Watch what you put down your drains. 
• Remember the three P’s: poop, pee, and (toilet) paper. Those are the only things that should be flushed down a toilet. 
• Avoid flushing other chemicals or medications down the drain or toilet as they could contaminate your well. 

Septic Tank: 

• Wastewater exits the home through a pipe and enters the septic tank which is buried and watertight.
• The solids settle at the bottom forming sludge, while fats, oils, and grease float to the top and form scum. Sludge is broken down by microorganisms that also destroy some of the contaminants in the wastewater. 
• If a tank is leaking, contaminated wastewater will exit the tank before it is treated. A septic tank needs serviced and pumped on a regular basis to ensure it is working properly.

Drainfield: 

• In your yard, a series of shallow trenches were placed to create the drainfield. The partially treated wastewater flows from the septic tank into the drainfield and slowly filters down through the soil until it reaches the groundwater.  
• Overloading your drainfield with too much water or having it clogged with solids will cause sewage to surface in your yard or even back into your house.

Treatment in the Soil: 

• Most bacteria, viruses, and some nutrients are removed when the wastewater filters through the soil.
• Soil cannot remove all medicines, cleaning products, and other harmful chemicals, so they pose the risk of entering the groundwater. 
• Wastewater that surfaces in the yard may contaminate your drinking water through an unsecured cap or cracks in the well casing.

Groundwater: 

• Groundwater is water that is beneath the Earth’s surface and is held in the soil or in the pores and crevices of rocks. 
• Any contaminants that remain after leaving the septic system may seep into the groundwater. 
• The biggest risk for a well to become contaminated is if it is in the path of groundwater flow beneath a septic system.

Further Resources:

• Septic Systems and Drinking Water | Diagram & Table from EPA
• Understand Your Pump Septic System | 3D model from TPC HD
• How does a Septic System Work? | Video from SEFC

RCAP’s Onsite/ Decentralized Program

RCAP (Rural Community Assistance Partnership) has an onsite/decentralized program that provides training, technical assistance, and financial resources to assist individual homeowners, neighborhoods and entire communities that rely on inadequate septic systems for their waste disposal. 

This program is mostly funded by U.S. EPA through the Rural Treatment Works and National Priority Area 2 grants. RCAP can offer hands-on training with community members, sanitarians, and any professionals who work with onsite systems as well as technical assistance. RCAP has been participating in the Biden administration’s Closing America’s Wastewater Access Gap Community Initiative in six of the 11 pilot communities located in persistent poverty/ disadvantaged areas.

Recently, we spoke with Sarah Buck, RCAP’s Chief Programs Officer, and she provided more information on this valuable resource for anyone working with onsite/decentralized wastewater systems. 

How does this program allow RCAP to help people with onsite/decentralized systems?

There are many ways that this program can help!

• With technical assistance providers, we can help set up a responsible management entity (RME) for decentralized systems.
• We’re able to do mapping activities to map septic systems in a community.
• We can look at areas with high concentrations of septic systems that pose environmental & health risks and help them review all of their options including interconnecting them or assisting with setting up a publicly owned water treatment works or decentralized system.
• We can help find funding to fund these types of projects in disadvantaged communities.

What are the eligible areas?

• Training and technical assistance generally is for communities of 10,000 or less in all 50 states and the US Territories including on Tribal lands/for Tribal septic owners.

Is there financial assistance available?

• Most of RCAP’s regional partners participate in the USDA Decentralized and Well Revolver Fund which provides funding that well and septic owners can use for replacements or updates.

How to apply for assistance? 

• Go to RCAP’s website and fill out the “Get Assistance” Form which will go to someone at the national office. They will then send that form to a regional partner near you to set up a technical assistance consultation.
• Find your local provider on RCAP’s website and contact them directly.
• Fill out U.S. EPA’s Water Technical Assistance Request Form and be assigned a provider that way.

Who are the partners that are assisting with this program?

• RCAP & their 6 Regional Partners
  • Rural Community Assistance Corporation (RCAC) – The Western RCAP
    • Serving Alaska, Arizona, California, Colorado, Hawaii, Idaho, Nevada, New Mexico, Oregon, Utah, and Washington
  • RCAP Solutions (RSOL) – The Northeastern and Caribbean RCAP
    • Serving all six New England States, New York, New Jersey, Pennsylvania, Puerto Rico, and the U.S. Virgin Islands
  • Midwest Assistance Program (MAP) – The Midwest RCAP
    • Serving Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, South Dakota, and Wyoming
  • Southeast Rural Community Assistance Partnership (SERCAP) – The Southeastern RCAP
    • Serving Delaware, Florida, Georgia, Maryland, North Carolina, South Carolina, and Virginia
  • Communities Unlimited (CU) – The Southern RCAP
    • Serving Alabama, Arkansas, Louisiana, Mississippi, Oklahoma, Tennessee, and Texas
  • Great Lakes Community Action Partnership (GLCAP) – The Great Lakes RCAP
    • Serving Illinois, Indiana, Kentucky, Michigan, Ohio, West Virginia, and Wisconsin
• National Onsite Wastewater Recycling Association (NOWRA)
• WaterOperator.org
• Inter Tribal Council of Arizona (ITCA)
• Moonshot Missions (a new national EFC)

Further Resources?

• Sign up for A Drop of Knowledge and Rural Matters to receive updates on work RCAP is doing
• RCAP hosts multiple webinars a year dedicated to onsite/decentralized topics | View Archive
• New Onsite Wastewater Treatment System User Guide created in collaboration with NOWRA | View PDF
• Developing a new Septic Assessment Tool in collaboration with WaterOperator.org that will be piloted fall 2023 and will be available as a fillable PDF online

How Did You Support SepticSmart Week?

The United States Environmental Protection Agency (U.S. EPA) hosted the 11th annual SepticSmart Week from September 18-22, 2023. Many water industry professionals took to social media to share U.S. EPA's helpful tips with septic system owners in their communities.

1. Think at the Sink! What goes down the drain has a big impact on your septic system. Fats, grease, and solids can clog a system’s pipes and drainfield.
2. Don’t Overload the Commode! A toilet is not a trash can. Disposable diapers and wipes, feminine hygiene products, coffee grounds, cigarette butts, and cat litter can damage a septic system.
3. Don’t Strain Your Drain! Use water efficiently and stagger use of water-based appliances. Too much water use at once can overload a system that hasn’t been pumped recently.
4. Shield Your Field! Tree and shrub roots, cars, and livestock can damage your septic drainfield.
5. Keep It Clean! Contamination can occur when a septic system leaks due to improper maintenance. Be sure your drinking water is safe to drink by testing it regularly.
6. Protect It and Inspect It! Regular septic system maintenance can save homeowners thousands of dollars in repairs and protect public health.

This year's SepticSmart Week creative challenge was in partnership with Youth Engaged 4 Change and asked students ages 11-19 what “septic systems of the future” might look like. Participants were encouraged to demonstrate their thoughts on how future septic systems could sustainably safeguard community health and protect waterways. The top three winners received $100 gift cards and included Tyler’s Diagram showing a new and improved drain field regulator, Karolina’s Poem “Future Septic Systems”, and Ahana’s Essay “Septic Systems of the Future.”

Private Well Class: Septic Systems 101

Through our sister program at PrivateWellClass.org, our team hosts monthly webinars. Each year the most popular training is Septic Systems 101. In this webinar recording you’ll learn about septic system management as part of a larger strategy to protect the water in your private well. Using best practices to maintain your septic system can also keep it in proper working order and prolong its life. The webinar will answer questions such as: 

• What is safe to flush down your drains?
• Do you need to put additives in your septic tank?
• How to prolong the life of your system?

Below you'll find a recording of the most recent training, held in July 2023.

The Impact of Climate Change on Massachusetts Septic Systems

Climate Change + Population Increase = Imbalance in the Waterways of Cape Cod, Massachusetts. 

The old septic systems used by about 95% of the growing population of Cape Cod are contributing to rising nitrogen and phosphorus levels in the waterways which are slowly warming due to climate change. Septic systems are a great option in places where homes are too spread out to justify sewers and water treatment plants but they don’t filter out the nitrogen and phosphorus that ends up seeping into groundwater. When nutrients like nitrogen and phosphorus runoff into the water, they act as a fertilizer for bacteria and algae. This combination of factors has resulted in an “explosion” of blue-green algae to take over the Cape and wreak havoc on the ecosystem.

After several lawsuits filed by environmentalists, the state of Massachusetts has proposed that local communities are required to fix the problem within 20 years. This has created some pushback from the community of Mashpee, MA that has already started installing a sewer system, the construction of which was projected to be spread out over 25 years. If the proposed rule is enforced, that would force the community to move faster and find a way to cover the huge cost of construction. This raises the issue of cost in general since sewers and water treatment plants are extremely expensive for the community and new septic systems can be a huge expense to the individual homeowners in the area, many of whom are retired and living on fixed incomes.

How this plays out in Massachusetts will be viewed by other states in the future as they seek to address similar surface water quality issues in areas with a high density of decentralized wastewater treatment. 

For more information concerning Nutrient Runoff from Septic Systems check out some of the following resources:

• Septic Systems and Surface Water
  • This interactive graphic and diagram explains how nutrients and pathogens from your septic system may impact streams, lakes, or other water bodies near your home.
• Nutrients from septic systems can impact well and surface water
  • This article goes into detail about the impact a malfunctioning septic system has on the surrounding waterways, wells, and groundwater. 
• How Nitrogen from Septic Systems Can Harm Water Quality
  • This 2-page fact sheet describes how nitrogen can affect the soil and water in the areas surrounding your septic system. 

For more information concerning Harmful Algal Blooms (HABs) check out some of the following resources from WaterOperator.org:

• Addressing HABs and Cyanotoxins in Drinking Water with the Drinking Water State Revolving Fund
  • This 4-page fact sheet describes DWSRF eligibilities related HABS. It provides several case studies where DWSRF funds were used for HABs related activities.
• Algae/Cyanobacteria Toxins and Public Water Systems
  • This 31-slide presentation discusses how to understand the problem, know what tools are available, and plan how to manage a cyanotoxin event.
• Algal Toxin Risk Assessment and Management Strategic Plan for Drinking Water
  • This 81-page report is a strategic plan for assessing and managing risks associated with algal toxins in drinking water provided by public water systems. This plan presents examples of recently completed and ongoing HAB-related activities and provides steps and timelines for intended future EPA activities. These ongoing and future activities outline EPA’s plan for the next few months through the next five years and beyond.

Septic Systems 101 Training

Through our sister program at PrivateWellClass.org, our team hosts monthly webinars. Each year the most popular training in Septic Systems 101. Below you'll find a recording of the most recent training, held in August 2022. Topics include:

• What is safe to flush down a drain?
• Do you need to put additives in your septic tank?
• How can you prolong the life of your system?

Decentralized Wastewater Infrastructure Challenges in the Alabama Black Belt

A quarter of Americans rely on decentralized wastewater systems, including septic tanks, because they are too far away from municipal sewers or the local environment cannot support a wastewater treatment plant.

Decentralized wastewater treatment facilities can offer economic and environmental benefits to a community, but they can also be dangerous to public health and the local ecosystem if they are not designed properly.

In the Black Belt region of Central Alabama, the rural landscape and heavy clay soils make it difficult to establish a traditional wastewater facility. These communities have struggled with wastewater management for years and the U.S. EPA (with many partners) has been working to help develop long-term solutions.

Impermeable soil, high rates of poverty, and no sewer access can result in difficult choices. Some communities in this region use straight pipes to carry wastewater to a nearby location like a ditch or woods, where residents can then be exposed to raw sewage.

Decentralized wastewater treatment systems can use a variety of different approaches to process a community’s wastewater, but there are also financial and managerial solutions that can be explored. Responsibilities can be better distributed and organized with community leadership. Individuals who attend community meetings and communicate with their state and local government officials are more likely to have their voice heard. 

The newly passed infrastructure bill is set to contribute $150 million in decentralized household grants over five years to help low-income homeowners construct or repair failing septic systems. Investments are also needed in cost-effective treatment technologies and innovative approaches to help municipal wastewater systems reach rural communities. 

Dig Deep, an organization that helps bring running water and adequate sanitation to communities across the United States, created a decentralized wastewater innovation cohort to help connect rural communities with innovative solutions. 

The Alabama Black Belt is just one of many regions of the United States that are struggling, with a history of environmental injustice compounding logistical challenges. Roughly 2.2 million Americans across the United States still do not have running water or adequate sanitation. 

The information in this blog post was presented at a U.S. EPA webinar in May 2021. A recording is available to explore this topic in more depth: