Water with a strong orange tint seen near a popular local fishing spot in Ponthir. "The discharge into the lagoon is part of the treatment process within Dŵr Cymru Welsh Water's Court Farm Water Treatment Works and is part of normal site operations." Water with a strong orange tint seen near a popular local fishing spot in Ponthir. "The water is being recycled from our processes at the Water Treatment Works and does have a level of iron content which is the discoloration observed." He said: "The water from the reservoir is transferred to our Water Treatment Works where it is treated to the high standards set by our regulators.