A Water provides services to around 1.7 million South Australians. We: supply water remove sewage from homes and businesses treat sewage and wastewater recycle some wastewater. We work hard to ensure your water is high quality, safe to drink and always available. We make sure you can find out how good your water is. SA Water maintains and operates 10 major metropolitan reservoirs. We also look after the network of pipes, taking water to and from your property.