Air and Water Quality

What we breathe and drink.

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wtop.com > local > 2026 > 10 > additional-testing-shows-potomac-river-returned-to-normal-after-sewage-spill

Additional testing shows Potomac River ‘returned to normal’ after sewage spill

6+ day, 22+ hour ago   (154+ words) DC Water announced Wednesday that testing has shown the Potomac River has “returned to normal” after a sewage spill earlier this year. Further and expanded testing has since been conducted on the river. DC Water said there is “no evidence…...


washingtonpost.com > dc-md-va > 10/07/2026 > after-vast-sewage-spill-officials-say-testing-shows-potomac-is-back-health

After vast sewage spill, officials say testing shows Potomac is back to health

1+ week, 3+ hour ago   (124+ words) Breaking news and analysis on politics, business, world, national news, entertainment and more. In-depth DC, Virginia, Maryland news coverage including traffic, weather, crime, education, restaurant reviews and more. Testing “found no current signs of harm” from the millions of gallons…...


wtop.com > maryland > 2026 > 09 > more-self-service-vehicle-emissions-kiosks-planned-for-montgomery-prince-georges-counties

More self-service vehicle emissions kiosks planned for Montgomery, Prince George’s counties – WTOP News

2+ week, 1+ day ago   (30+ words) Maryland is expanding self-service vehicle emissions testing kiosks in the D.C. area, with a second kiosk now open in Gaithersburg and more locations planned in Montgomery and Prince George’s counties....