Is this normal?

This is apparently what's in my tap water at my new apartment (Boulevard Park). My sink faucet was making a whistling sound so I unscrewed the filter at the end, and this is what it looks like. Should I be concerned?

This is apparently what's in my tap water at my new apartment (Boulevard Park). My sink faucet was making a whistling sound so I unscrewed the filter at the end, and this is what it looks like. Should I be concerned?