Stricter (but not looser) standards can be imposed on state level. Canada has no binding national drinking water law, they leave it to territories/provinces to decide how to implement guidelines.

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sgnelson 18 hours ago | parent [-]

Watersheds don't follow political boundaries.

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8note 18 hours ago | parent [-]

sometimes they do.

the Alberta/British Columbia border is defined by which direction water drains off the mountains

	▲	BobaFloutist 16 hours ago \| parent [-]
		That sounds like the political boundary follows the watershed. It also doesn't actually refute the actual point they were making.