Africa Water, Sanitation & Hygiene March - April 2017 Vol.12 No.2 | Page 42

Roundup
Pink Tap Water Startles Louisiana Residents By Sara Jerome
Right in time for Valentine’ s Day, the water in a Louisiana city turned pink, and residents weren’ t happy about it.“ On Monday, some Lake Charles residents found pink water coming out of their faucets. It was found in sinks and bathtubs from multiple locations around town,” KPLC reported.
The city water department weighed in with a statement, per KPLC:
The water division has received a few calls concerning a pinkish discoloration of water near the Center Street East Plant. The superintendent has checked the effluents and chemical feed and detected no problems. It is possible that there may have been a slight overfeed of potassium permanganate used to treat manganese. The department is now performing flushing in the area reporting pinkish water, and they will monitor the plant effluent for the remainder of the day.
The water division noted that the water is safe to drink. They said“ crystal clear” water has been flowing in the time since the complaints arrived.
Lake Charles is not the first city to surprise ratepayers with pink tap water. When Ohio tap water turned pink in 2009, potassium permanganate was the cause there, too, according to USA Today. Kansas City faced a similar issue last month when“ an excess of sodium permanganate was added to the raw water treatment overnight,” according to KSHB.
Potassium permanganate, the culprit in Lake Charles, is usually added to treatment processes at the raw water intake, according to the U. S. EPA’ s water treatability database. It is generally followed by conventional treatment or granular activated carbon, membrane filtration, and chlorine disinfection. Per the database: Permanganate is a strong oxidant used primarily to control taste and odors, remove color, control biological growth in treatment plants, control zebra mussels in intake structures and pipelines, and remove iron and manganese. Permanganate can also be used for controlling the formation of trihalomethanes and other disinfection byproducts by oxidizing precursors and reducing the demand for other disinfectants. Permanganate has also shown to lower coagulant dose requirements and improve clarification.
In Lake Charles, the pink water alarmed locals. Jason Higginbotham told KPLC:“ After I put my child in the shower, she put the stopper in. My older son came in and said that the water was pink so I went in and took her out of the shower and started flushing the toilet. I turned the sink on and it still ran pink for awhile so we just got her out of the bath and I ran the water for about 30 minutes until it all went away.”
Mistaken Meter Reads Lead to $ 800,000 Lawsuit By Sara Jerome
Water consumption is at the center of a giant lawsuit in California. The city of Poway, in San Diego County,“ has sued Palomar Health for up to $ 800,000 the healthcare district was mistakenly undercharged for city water used by Pomerado Hospital between 2008 and 2015,” it was reported. As a result of meter-reading mistakes, the city undercharged for water use over that period, billing for just 10 percent of water use, the report said. The parties initially tried to negotiate a settlement, the newspaper previously reported, but never reached a deal.
How did the mistake occur?
“ The error began when a new consolidated meter was installed at the hospital in 2008 and wasn’ t discovered until the summer of 2015, then City Manager Dan Singer said. The face of the new meter has six digits,” according to reported.
“ Before the new meter was installed, Pomerado Hospital’ s water bills averaged $ 150,000 to $ 200,000. That dropped to $ 15,000 to $ 20,000 with the new five-digit meter,” the report continued.
Becker’ s Hospital Review summarized the details of the lawsuit:
The breach of contract lawsuit filed in San Diego Superior Court Dec. 27 says once the error was discovered, the city of Poway requested the payment from Palomar Health. But the lawsuit states,“ Defendants refused, and continue to refuse, to make any payment for the water the city actually delivered to Pomerado Hospital,” according to the report.
A Palomar Health spokesperson was reported as saying that it does not comment on pending litigation.
Poway Mayor Steve Vaus said“ The city made a mistake in reading the meter. However, that doesn’ t change the fact that they used the water and they need to pay for the water.”
40 Africa Water, Sanitation & Hygiene • March- April 2017