First step for yourself or Noah is to contact your local municipality in charge of your water service. Expect to have to jump through some hoops to get anywhere but legally, if you request it, they will send out someone to take samples of your tap water for testing and report back with the results. There is no charge for this. You can also look up your municipality online- most have their recent water reports available to view. You can also contact the EPA's Safe Drinking Water Hotline at 800-426-4791 for more help.
As a last resort, you can also pay for a private company to test your water and use these results as proof there is an issue that needs to be addressed for public welfare if the water is in fact unhealthy for human consumption. Just realize what is considered acceptable for humans may not be healthy for fish.
As with anything with government, expect a lot of run around and having to talk to a slew of different people before you are able to receive any concrete answers or help. Good luck!
No stranger to the government and how they work as I spent a few years in the military so I am ready. I started today by getting in touch with my landlord and then the city water and sewage department. When I receive a call back I will request somebody to come out and check the water. Luckily, my wife and I have been drinking bottled water since day one, so we've somewhat avoided the crappy water here.
As it pertains to the tank, I think these orange home deport buckets are going to be my best friend. My wife's parents live about 10 miles away and have really great water.