I’ve been analyzing water samples from a local reservoir and noticed elevated levels of nitrates… While the source could be agricultural runoff, I’m curious about how others approach this issue in terms of immediate response and long-term treatment strategies. What methods do you find effective for both assessment and mitigation?
Elevated nitrates can be tricky. Have you considered using a multi-barrier approach for long-term treatment? It could help address agricultural runoff effectively. 
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I totally get where you’re coming from — this drives me nuts too. Have you thought about using reverse osmosis for immediate assessments? It can be a bit pricey, but it’s a solid short-term fix.