In this episode Talking Under Water co-host Mandy Crispin speaks with Pranjali Kumar, associate vice president at Carollo and the firm’s Southeast Water Reuse Lead, about why the industry needs to look beyond treatment technologies and public perception when evaluating reuse projects.

Kumar explains how water reuse is increasingly being considered a resilience and sustainability tool rather than simply a drought response measure. She highlights the importance of systems thinking, organizational collaboration, and investment in human capital to ensure successful project implementation. The conversation also explores common misconceptions about potable reuse regulations, including the lengthy and collaborative process required to develop state-specific frameworks that protect public health while enabling innovation.

The discussion covers the factors that separate successful projects from those that stall, the economic realities of potable reuse compared to alternative water supply options, and the safeguards that make reuse a highly regulated and reliable source of drinking water. Looking ahead, Kumar shares insights on PFAS monitoring, artificial intelligence, advanced monitoring technologies, and how the next generation of water reuse leaders can build on lessons learned while remaining adaptable to change.

Engage with Pranjali Kumar, Carollo Engineers associate vice president and southeast water reuse lead.

00:00 – Introduction

01:16 – Why water reuse is becoming a core water supply strategy

03:36 – What's overemphasized and underestimated in potable reuse

05:48 – How potable reuse regulations are developed and why they take years

11:04 – What separates successful reuse projects from stalled projects

13:17 – Debunking the myth that potable reuse is cost prohibitive

18:35 – PFAS, AI, advanced monitoring, and the future of potable reuse

23:18 – Housekeeping

About the Podcast

Talking Under Water is the premier podcast for the water industry, including municipal water and wastewater, residential water treatment, storm water management and erosion control. It is produced in coordination between Wastewater Digest (WWD), WaterWorld and Stormwater Solutions (SWS). The podcast covers topics under the One Water movement including the municipal and industrial water and wastewater, residential, stormwater and erosion control markets. Talking Under Water highlights news, trends, new technologies, industry discussions and interviews with experts across the municipal water industry. New episodes of the podcast are released every other week. Logo Images: Anatoly Tiplyashin / Romolo Tavani / stock.adobe.com.

Contact the Talking Under Water podcast editors by emailing talkingunderwater@endeavorb2b.com engaging with them on X @TUWpodcast. Join the conversation by commenting or using the hashtag #talkingunderwaterpod on social media.

In this episode Talking Under Water co-hosts discuss EPA’s draft guidance on PFAS in biosolids, lessons utilities can take from the PFAS regulatory landscape to prepare for future contaminants, and recent developments affecting stormwater and water infrastructure projects.

Bob Crossen explains EPA’s newly released guidance for reducing risks associated with PFOA and PFOS in biosolids, highlighting the agency’s emphasis on source control, monitoring, pollution prevention, and public engagement through the ongoing comment period. He examines how states such as Michigan have successfully reduced PFAS loadings through pretreatment programs and discusses the challenges utilities face when land application options become restricted.

Mandy Crispin shares key insights from an ACE panel discussion focused on what PFAS can teach utilities about preparing for future contaminant regulations. She outlines emerging contaminants that could draw future regulatory attention and emphasizes the importance of documenting contaminant-specific costs, testing efforts, treatment decisions, staff time, and public outreach activities. These records could prove valuable for compliance, funding opportunities, and potential cost recovery efforts in the future.

The episode concludes with stormwater news covering Michigan dam safety legislation, EPA-approved groundwater remediation plans in Wyandotte, and Florida funding to strengthen wastewater infrastructure following Hurricane Milton.

EPA releases draft PFAS biosolids guidance for public comment

EPA proposes UCMR 6 monitoring rule, leaves microplastics off testing list

Lessons from PFAS can help utilities prepare for the next wave of contaminants

How Suffolk County Water Authority Got Ahead of PFAS and Built a Roadmap for the Next Emerging Contaminant

What PFAS Taught Us About Preparing for the Next Emerging Contaminant

What is greywater?

• 00:00 – Introduction
• 01:31 – EPA releases PFAS in biosolids guidance and opens public comment period
• 04:59 – Michigan’s source-control strategy shows major PFAS reductions
• 11:23 – ACE panel lessons: preparing utilities for the next emerging contaminant
• 14:26 – Why utilities should document contaminant-specific costs and decisions
• 18:08 – Suffolk County perspective: preventing contaminants before they reach drinking water sources
• 19:26 – Stormwater infrastructure, dam safety, cleanup projects, and funding news
• 21:48 – Housekeeping

About the podcast

Talking Under Water is the premier podcast for the water industry, including municipal water and wastewater, residential water treatment, storm water management and erosion control. It is produced in coordination between Wastewater Digest (WWD), WaterWorld and Storm Water Solutions (SWS). The podcast covers topics under the One Water movement including the municipal and industrial water and wastewater, residential, stormwater and erosion control markets. Talking Under Water highlights news, trends, new technologies, industry discussions and interviews with experts across the municipal water industry. New episodes of the podcast are released every other week. Logo Images: Anatoly Tiplyashin / Romolo Tavani / stock.adobe.com.

Contact the Talking Under Water podcast editors by emailing talkingunderwater@endeavorb2b.com engaging with them on X @TUWpodcast. Join the conversation by commenting or using the hashtag #talkingunderwaterpod on social media.

In this episode Talking Under Water co-hosts Bob Crossen and Mandy Crispin discuss key insights and takeaways from the AWWA ACE26 conference, including affordability challenges, PFAS treatment and regulation, data center demands, and the evolving role of collaboration across the water sector.

Recording from Washington, D.C., the hosts share firsthand experiences from sessions, interviews, and conversations across the event. They highlight a powerful keynote framing this moment as “water’s moonshot,” emphasizing the urgency and scale of challenges facing utilities today. Central to the discussion is the growing tension between maintaining affordable rates and funding essential infrastructure upgrades.

The episode dives into PFAS as a persistent and complicated issue, touching on treatment technologies, regulatory uncertainty, and liability concerns tied to disposal. The conversation expands to emerging contaminants like microplastics and the broader need to address pollution further upstream.

They also explore how data centers are reshaping water demand, particularly at the local level, and why utilities must engage early in siting and partnership discussions. Across topics, a recurring theme emerges: collaboration — whether through new project delivery models, public-private partnerships, or policy innovation — is critical to navigating today’s interconnected challenges and preparing for the future.

AWWA ACE26 Show Coverage Landing Page (to be updated on an ongoing basis — bookmark and come back for more show coverage)

Wastewater Digest Top Projects Nomination Form

WaterWorld Top Projects Nomination Form

Stormwater Solutions Top Projects Nomination Form

PFAS Crossword Puzzle

00:00 – Introduction 01:03 – “Water’s Moon Moment” Keynote 03:43 – Affordability vs. Infrastructure Crisis 07:01 – PFAS Complexity & Industry Overload 12:03 – Emerging Contaminants & Regulatory Questions 20:32 – Data Centers & Localized Water Demand 44:59 – Housekeeping

About the podcast

Talking Under Water is the premier podcast for the water industry, including municipal water and wastewater, residential water treatment, storm water management and erosion control. It is produced in coordination between Wastewater Digest (WWD), WaterWorld and Storm Water Solutions (SWS). The podcast covers topics under the One Water movement including the municipal and industrial water and wastewater, residential, stormwater and erosion control markets. Talking Under Water highlights news, trends, new technologies, industry discussions and interviews with experts across the municipal water industry. New episodes of the podcast are released every other week. Logo Images: Anatoly Tiplyashin / Romolo Tavani / stock.adobe.com.

Contact the Talking Under Water podcast editors by emailing talkingunderwater@endeavorb2b.com engaging with them on X @TUWpodcast. Join the conversation by commenting or using the hashtag #talkingunderwaterpod on social media.

In this sponsored interview, Editorial Director Bob Crossen sits down with Blake Michal from Kamstrup to discuss what a decade of AMI performance can teach utilities about reliability, cost, and lifecycle value.

Talking Under Water is the premier podcast for the water industry, including municipal water and wastewater, residential water treatment, storm water management and erosion control. It is produced in coordination between Wastewater Digest (WWD), WaterWorld and Stormwater Solutions (SWS). The podcast covers topics under the One Water movement including the municipal and industrial water and wastewater, residential, stormwater and erosion control markets. Talking Under Water highlights news, trends, new technologies, industry discussions and interviews with experts across the municipal water industry. New episodes of the podcast are released every other week. Logo Images: Anatoly Tiplyashin / Romolo Tavani / stock.adobe.com.  

Contact the Talking Under Water podcast editors by emailing talkingunderwater@endeavorb2b.com engaging with them on X @TUWpodcast. Join the conversation by commenting or using the hashtag #talkingunderwaterpod on social media. 

In this episode Talking Under Water co-host Bob Crossen speaks with Krishna Prashanth, global product line manager for electromagnetic flow meters and global segment manager for water and wastewater instrumentation at ABB, about the promise and practicality of the circular water economy.

Prashanth explains how the concept shifts water management away from a linear take-treat-discharge model and toward a system focused on reducing losses, reusing water, recovering resources and extending the value of every drop. He outlines the “six Rs” — reduce, reuse, recycle, reclaim, recover and restore — and argues that utilities must evolve from operators of pipes and plants into stewards of local water loops.

The conversation also explores the critical role of data capture, monitoring and analysis in making circularity possible, from identifying leaks and managing demand to improving reuse decisions and predicting infrastructure issues. Prashanth and Crossen discuss how AI can strengthen these efforts when paired with trusted instrumentation, as well as the barriers standing in the way, including regulatory silos, misaligned incentives and aging infrastructure.

Together, they paint a picture of a more resilient, efficient and resource-aware future for water utilities.

Wastewater Digest Top Projects Nomination Form

WaterWorld Top Projects Nomination Form

Stormwater Solutions Top Projects Nomination Form

PFAS Crossword Puzzle

00:00 – Introduction 02:14 – What the circular water economy actually means 05:29 – The six Rs that could reshape water management 11:15 – Why utilities need a new role 13:21 – The data foundation behind circular water 18:17 – Where AI fits — and where it doesn’t 28:23 – Housekeeping

About the podcast

Talking Under Water is the premier podcast for the water industry, including municipal water and wastewater, residential water treatment, storm water management and erosion control. It is produced in coordination between Wastewater Digest (WWD), WaterWorld and Storm Water Solutions (SWS). The podcast covers topics under the One Water movement including the municipal and industrial water and wastewater, residential, stormwater and erosion control markets. Talking Under Water highlights news, trends, new technologies, industry discussions and interviews with experts across the municipal water industry. New episodes of the podcast are released every other week. Logo Images: Anatoly Tiplyashin / Romolo Tavani / stock.adobe.com.

Contact the Talking Under Water podcast editors by emailing talkingunderwater@endeavorb2b.com engaging with them on X @TUWpodcast. Join the conversation by commenting or using the hashtag #talkingunderwaterpod on social media.

In this episode Talking Under Water co-hosts discuss EPA’s latest PFAS regulatory moves, major new federal funding for drinking water and lead service line replacement, and stormwater-related investments aimed at protecting coastal water quality. The episode opens with a breakdown of EPA’s proposal to maintain drinking water standards for PFOA and PFOS while reconsidering standards for several other PFAS compounds, alongside a potential compliance extension that could give some utilities until 2031 to meet federal limits. The hosts also examine EPA’s increasing focus on PFAS destruction technologies, nearly $946 million in emerging contaminants funding, and what those developments mean for utilities trying to balance treatment costs, planning, and compliance pressure.

The conversation then shifts to the legal and financial risks surrounding PFAS liability, including how CERCLA and RCRA apply to utilities, what EPA’s enforcement discretion does and does not protect against, and why water sector groups are pushing for permanent legislative safeguards. Later, the episode highlights nearly $2.9 billion in lead service line replacement funding and closes with stormwater and coastal water quality news, including federal beach monitoring grants and resilience planning underway in Sullivan’s Island, South Carolina.

Administrator Zeldin Makes Major PFAS Announcement and Hosts Roundtable with Secretary Kennedy

EPA History: Superfund

Federal Environmental Liability under CERCLA and RCRA

Report finds 61% of U.S. beaches experienced unsafe contamination levels in 2024

EPA announces $9.75 million in BEACH Act funding for water quality monitoring

Sullivan's Island resilience plan pairs gray infrastructure with green solutions for 2050

• 00:00 – Introduction
• 01:16 – EPA PFAS actions overview
• 02:16 – Proposed PFAS compliance extension to 2031
• 03:31 – Shift toward PFAS destruction technologies
• 04:39 – $945.7 million in emerging contaminants funding
• 06:13 – EPA outreach for small and disadvantaged systems
• 07:02 – $2.9 billion for lead service line replacement
• 08:34 – Lead funding declines slightly from prior year
• 09:02 – PFAS liability discussion begins
• 10:20 – RCRA and CERCLA explainer
• 13:05 – Why utilities face PFAS liability risk
• 14:03 – EPA enforcement discretion
• 16:48 – Legislative safe harbor push
• 17:45 – Deeper PRP liability implications
• 19:32 – Atlantic Richfield case walkthrough
• 23:22 – Limits of current liability protections
• 25:17 – Stormwater and coastal water quality segment
• 25:30 – EPA beach water quality grants
• 26:22 – Safer swimming report findings
• 27:12 – Sullivan’s Island resilience planning
• 28:11 – Housekeeping

About the podcast

Talking Under Water is the premier podcast for the water industry, including municipal water and wastewater, residential water treatment, storm water management and erosion control. It is produced in coordination between Wastewater Digest (WWD), WaterWorld and Storm Water Solutions (SWS). The podcast covers topics under the One Water movement including the municipal and industrial water and wastewater, residential, stormwater and erosion control markets. Talking Under Water highlights news, trends, new technologies, industry discussions and interviews with experts across the municipal water industry. New episodes of the podcast are released every other week. Logo Images: Anatoly Tiplyashin / Romolo Tavani / stock.adobe.com.

Contact the Talking Under Water podcast editors by emailing talkingunderwater@endeavorb2b.com engaging with them on X @TUWpodcast. Join the conversation by commenting or using the hashtag #talkingunderwaterpod on social media.

In this episode of Talking Underwater, Stormwater Solutions Head of Content Sarah Kominek speaks with Manuel Parra of Xylem Vue about how digital tools are changing the way municipalities prepare for and respond to flooding. The conversation explores how communities can use existing infrastructure more effectively, why high-quality data matters as much as data collection, and how predictive analytics, modeling, and AI can support faster, smarter decisions during wet weather events. Parra also shares real-world examples from Houston and Buffalo to show how practical, scalable flood-control technology can help reduce risk, improve operations, and protect lives.

• 00:00 - Episode introduction and overview of why flood prediction is becoming more urgent
• 01:54 - How digital flood-control applications help municipalities respond to severe weather events
• 03:11 - Tools emergency managers use today, from sensors and rain gauges to models and AI
• 04:24 - Why data quality, not just data quantity, is critical for effective flood response
• 06:25 - Houston example: underpass flood detection and public alerts using existing infrastructure
• 08:05 - Buffalo example: preemptive system management that helped reduce combined sewer overflows
• 10:12 - What integrating digital technology with existing stormwater infrastructure looks like in practice
• 11:35 - The role of predictive analytics and AI in supporting operator decisions
• 13:16 - How climate variability changes the baseline and why models must keep evolving
• 14:32 - Regulatory and liability considerations tied to better infrastructure management
• 15:34 - How smaller or under-resourced communities can adopt lower-cost, right-sized solutions
• 17:34 - Typical lead times for flood prediction and why every minute counts
• 18:35 - Final takeaway: flood technology does not have to be overly complex to make a major impact

Talking Under Water is the premier podcast for the water industry, including municipal water and wastewater, residential water treatment, storm water management and erosion control. It is produced in coordination between Wastewater Digest (WWD), WaterWorld and Stormwater Solutions (SWS). The podcast covers topics under the One Water movement including the municipal and industrial water and wastewater, residential, stormwater and erosion control markets. Talking Under Water highlights news, trends, new technologies, industry discussions and interviews with experts across the municipal water industry. New episodes of the podcast are released every other week. Logo Images: Anatoly Tiplyashin / Romolo Tavani / stock.adobe.com.  

Contact the Talking Under Water podcast editors by emailing talkingunderwater@endeavorb2b.com engaging with them on X @TUWpodcast. Join the conversation by commenting or using the hashtag #talkingunderwaterpod on social media. 

In this episode Talking Under Water the co-hosts discuss the addition of microplastics to the EPA’s Sixth Contaminant Candidate List (CCL6), enforcement fallout from the Potomac interceptor sewer collapse, industrial wastewater sampling tied to a Tesla facility in Texas, and recent stormwater headlines across the U.S.

How EPA Regulates Drinking Water Contaminants

CCL 6 Frequent Questions

Drinking Water Contaminant Candidate List 6-Draft

Drinking Water Contaminant Candidate List 6 (CCL 6) Docket Folder

Water Research Foundation Project 5155 (Consumer messaging guidance, microplastics)

Understanding microplastics in water: Fact vs. fiction (Brent Alspach video interview)

WaterWorld subscription

EPA, DOJ sue DC Water over Potomac Interceptor collapse

Lab analysis details wastewater characteristics at Tesla-linked site in Texas

Poll: Which wastewater process area will you focus on this year?

Charleston seeks $4.6 million to replace flood-prone homes with rain gardens, retention ponds

Grand Canyon eases water restrictions as aging system challenges persist

L.A. County captures record 120 billion gallons of stormwater, boosting local supply

00:00 Cold open 00:48 Introduction 01:27 EPA/HHS joint initiative announced to address microplastics 02:13 What the CCL is and how EPA uses it 02:39 How EPA decides whether to regulate (three criteria) 04:02 Draft CCL6 overview (chemicals, microbes, and groups) 05:01 Public comment process + key deadline 05:54 STOMP program explained 09:02 Potomac interceptor collapse 11:05 Tesla-linked wastewater characteristics 13:03 Douglas County, NV stormwater utility and rate proposals 14:33 Charleston, SC buyouts + rain gardens/retention 15:34 Grand Canyon National Park water system update 16:05 LA County stormwater capture numbers 17:07 Housekeeping

About the Podcast

Talking Under Water is the premier podcast for the water industry, including municipal water and wastewater, residential water treatment, storm water management and erosion control. It is produced in coordination between Wastewater Digest (WWD), WaterWorld and Storm Water Solutions (SWS). The podcast covers topics under the One Water movement including the municipal and industrial water and wastewater, residential, stormwater and erosion control markets. Talking Under Water highlights news, trends, new technologies, industry discussions and interviews with experts across the municipal water industry. New episodes of the podcast are released every other week. Logo Images: Anatoly Tiplyashin / Romolo Tavani / stock.adobe.com.

Contact the Talking Under Water podcast editors by emailing talkingunderwater@endeavorb2b.com engaging with them on X @TUWpodcast. Join the conversation by commenting or using the hashtag #talkingunderwaterpod on social media.