Can I sue my landlord if I found some black thing in the water from kitchen faucets?

I have living in an apartment for 3 and a half months. When I just moved in, the kitchen's faucet always dripping water, so I asked office to fix it. After fixed it, it still dripping water. and I always can find some black solid in the water, but after boiling the water, the black solid is disappear. I believe I drink the water for three and a half months. However, one day when I turn on hot water in kitchen faucets, the faucets was blocked, then I asked office fix it. Then I found a lot of black solids stuck in the faucets. I take some to ask someone from chemical wholesale manufacture, they think it might be carbon, like some fired and going to tank. I doubt it has affect my health, so i want to know can i sue the office. Thank You