National Primary Drinking Water Regulations | Ground Water and Drinking Water

The National Primary Drinking Water Regulations (NPDWR) are legally enforceable primary standards and treatment techniques that apply to public water systems. Primary standards and treatment techniques protect public health by limiting the levels of contaminants in drinking water.

[h2oIQ.org editor: Follow the link below to see the standards for the following categories:]

Microorganisms
Disinfectants
Disinfection Byproducts
Inorganic Chemicals
Organic Chemicals
Radionuclides

Fireworks at Mt. Rushmore contaminated water supply

Fireworks at Mt. Rushmore contaminated water supply

The news came out nationally in the form of a presidential tweet. President Trump praised Governor Kristi Noem for bringing "the big fireworks" back to Mount Rushmore for an Independence Day celebration in 2020.

May 8, 2019 The elaborate fireworks displays took place for 12 years, but the practice was stopped in 2009 due to the threat of forest fire in the Black Hills because of the pine beetle infestation.… [more…]

California: 15,000 cancer cases could stem from chemicals in tap water

Study estimates 15,000 cancer cases could stem from chemicals in California tap water

(CNN) A new study finds that drinking tap water in California over the course of a lifetime could increase the risk of cancer.

Researchers from the environmental advocacy group Environmental Working Group estimated that the contaminants found in public water systems in California could contribute to about 15,500 cancer cases there over the course of a lifetime. These contaminants include chemicals such as arsenic, hexavalent chromium and radioactive elements such … [more…]

Data Shows San Diego Officials Misled the Public on Potential Source of Lead in Water

Data Shows San Diego Officials Misled the Public on Potential Source of Lead in Water

Photo by Will Huntsberry

The city isn’t sure what 192,000 of its water lines are made of. No other major California cities have such a massive gap in recordkeeping – one that could cost the city between $192 million and $960 million if it doesn’t take drastic steps to account for the make of those lines in the next 18 months.

Over the past two years, amid growing worry about … [more…]

What is an ‘impaired’ waterway and why are so many in Pennsylvania?

What is an ‘impaired’ waterway and why are there so many of them in Pennsylvania?

Photo: Pennsylvania’s “Category 5” streams include the Juniata and Susquehanna rivers and many creeks, such as the Yellow Breeches in Cumberland County.

More than a third of Pennsylvania’s lakes and a fifth of its streams are impaired, meaning that pollution has (or should have, anyway) hindered their use for drinking water supplies, fishing, recreation or the aquatic life that call the waterways home.

Perhaps the best illustration of the scale … [more…]