Water quality in Tehran examined

# What is the condition of drinking water quality in Tehran?

I'm ready to translate the Persian news summary, but I don't see the full content in your message. You've provided only the headline/title:

"کیفیت آب شرب تهران در چه شرایطی است؟"

Which translates to: **"What is the condition of drinking water quality in Tehran?"**

Please provide the complete text with:

- ▸ Lead paragraph

- • Bullet points

-. Coverage-difference paragraph

And I'll translate them while maintaining the exact structure and markers.