Do your quantities trigger HASNO? Doesn't really matter anyway - read the SDS and see what it says. We have a shower in one area (highish risk) and eye wash in First Aid to cover other areas (minimal risk).

You'd need to carry out a risk assessment, what are the hazardous substances? How are they used? How much could be lost in a spill?

The answer to your question would be different if you're using hydrochloric acid vs. a weak acid, and it would depend on what you have on hand. If they're small quantities, you're close to a medical centre and you have clean running water then you're probably fine. So a lot depends on your situation