Water is at the heart of America’s national parks, yet many of these rivers, lakes, coasts, and wetlands are under growing stress from pollution, climate impacts, and decisions made outside park boundaries.

In this episode from the Reservoir Center in Washington, D.C., Ed Stierli of the National Parks Conservation Association explains how his organization serves as the independent voice for 433 national park sites, backed by nearly 2 million members. He breaks down why more than half of waterways in national parks remain impaired, connecting the dots between upstream land use, aging infrastructure, and weakened protections that shape water quality.

Stierli highlights how bedrock laws like the Clean Water Act and modern restoration programs have helped bring back iconic species and improve water conditions, while warning that political rollbacks could erode decades of progress. He also points to large-scale, watershed-based collaborations—uniting federal agencies, states, local governments, and nonprofits—to restore wetlands, rebuild natural buffers, and invest in resilient infrastructure.

Throughout, Stierli stresses the power of public engagement and broad coalitions to secure funding, defend protections, and keep national parks functioning as living classrooms where people can experience and learn from healthy waters.

waterloop is a nonprofit news outlet exploring solutions for water sustainability.

Wastewater treatment plants rely on nonstop mechanical power to keep water moving, oxygen flowing, and critical equipment turning—and the systems behind that power are the focus of this episode.

Dave Zimmerman of Dodge Industrial breaks down how gearboxes, bearings, motors, and couplings form the “powertrain” that drives nearly every major process in a treatment plant.

Zimmerman explains how these components support pumps, aeration basins, clarifiers, bar screens, screw conveyors, and oxidation ditches—operating 24/7 under punishing conditions of moisture, grit, vibration, and load. He highlights how smart mechanical design can cut energy consumption by 7–10 percent, a major opportunity for utilities facing some of the highest electricity bills in municipal government.

As the water workforce shrinks, Zimmerman outlines how pre-engineered, easy-to-install components reduce maintenance complexity and keep equipment online longer. Lessons from heavy industries like mining and aggregates—where shock loads and extreme stress are the norm—are shaping tougher, more durable systems for wastewater plants.

The conversation also explores emerging technologies such as sensors, real-time monitoring, and predictive maintenance tools that help operators understand equipment health and prevent catastrophic failures before they happen.

Learn more about Dodge Industrial.

waterloop is a nonprofit news outlet exploring solutions for water sustainability.

California’s Central Coast is turning recycled water into a lifeline for rivers, golf courses, farms, and coastal communities—showing how reuse can work far beyond the big cities.

In this episode, Nick Becker of Pebble Beach Community Services District, Alison Imamura of Monterey One Water, and Melanie Mow Schumacher of Soquel Creek Water District share how their communities are rethinking every drop.

At Pebble Beach, Becker explains how drought in the 1980s pushed local leaders to build one of the first systems that uses recycled water to irrigate seven world-class golf courses and a high school—later upgraded with microfiltration, reverse osmosis, and a 115-million-gallon reservoir so the system can bank winter water for dry summers.

Imamura describes how Pure Water Monterey takes a holistic approach, blending municipal wastewater, urban stormwater, industrial flows, and agricultural drainage into advanced treatment that both supplies 12,000 acres of farmland and returns purified water to the groundwater basin—cutting diversions from the Carmel River and protecting endangered species.

Schumacher shows how the small-but-mighty Soquel Creek Water District is fighting seawater intrusion and an overdrafted aquifer with Pure Water Soquel, an advanced purification project that turns wastewater into a high-quality groundwater recharge supply backed by strong public outreach, regional partnerships, and creative funding through state and federal programs.

This episode is part of The Golden State of Reuse, a series exploring the past, present, and future of water recycling across California.

The series is a collaboration with WateReuse California and sponsored by CDM Smith.

The series is also supported by the Sacramento Area Sewer District, Black & Veatch, and Monterey One Water.

waterloop is a nonprofit news outlet exploring solutions for water sustainability.