NCS Australia recently completed successful works on a reservoir remediation. The team were presented with issues of concrete spalling, cracking and major water leaks. The severity of the water leaks resulted in the reservoir unable to be used to its full capacity for a considerable amount of time. A high build repair mortar was selected to reinstate the areas suffering from spalling and honeycombing, and a full crack repair methodology and coating system used on the areas affected by cracking.