From Staff Reports

Residents and business owners in Prosper will be required to maintain a close eye on their water use as the Town enters Stage 3 of the water conservation plan, limiting watering of landscaping to once every seven days, according to Town Manager Harlan Jefferson.

"Our water supplier, the North Texas Municipal Water District, has informed all of its customers that on June 1, the more restrictive Stage 3 will be implemented. Our water situation is entering a critical stage where conservation and efficient use of this resource will be required of all of us," he said.

The water supplier, known as NTMWD, is dealing with a diminished supply of raw water, since the three-year ban on harvesting water from Lake Texoma remains in effect. In 2010, state environmental officials prohibited the NTMWD from extracting water from that source because of the invasion of zebra mussels, a non-native species that clogs pipes. The NTMWD closed the pipes, which blended Lake Texoma water with water from other reservoirs. The blending was seen as a hazard to other bodies of water which have not been infested with the mussels.

A new, dedicated line is being laid between Lake Texoma and NTMWD’s water treatment facility in Wylie that will only carry Lake Texoma water. That pipeline, however, is not expected online until early 2014.

"In the meantime," says Prosper’s Public Works Director Frank Jaromin, "the water supplier is dealing with about 28 percent less water to harvest, purify and distribute."

Jaromin adds that the lingering drought and the unprecedented growth in the area are aggravating the situation. "Those are the main reasons we’re entering Stage 3 on June 1," he said.

As of June 1, Prosper will implement the following Stage 3 restrictions:

n continue actions in place under Stages 1 and 2;

n accelerate public education efforts on conservation;

n prohibit hosing of paved areas, buildings, or windows;

n prohibit operation of all ornamental fountains that use treated water;

n prohibit washing or rinsing of vehicles by hose except with a hose-end cutoff nozzle;

n prohibit using water in such a manner as to allow runoff or other waste.

Of greatest impact to residents and businesses is the implementation of a schedule for automatic irrigation

systems for watering landscapes. While Stage 2 allowed twice weekly watering, Stage 3 allows for only once

every seven days.

Starting on June 1, the following watering schedule will apply:

n Retail, Business, Industrial and Commercial customers may water on Mondays;

n Single family and multi-family residences with addresses ending in even numbers may water on Tuesdays;

n Schools, churches, parks, designated open spaces, medians, rights-of-way and other non-residential areas may

water on Thursdays;

Single family and multi-family residences with addresses ending in odd numbers may water on Fridays.

Jefferson emphasized that these Stage 3 restrictions are applicable to every Prosper Utility Customer, except

those who use well water for their irrigation and for those who have a registered and properly functioning ET

(evapotranspiration) system coupled with a drip irrigation system.

"We’re looking at implementing some compliance and enforcement procedures that may carry penalties for repeat violations, but that is still being developed. Even so, we will clearly mark those areas in town that are exempt from these restrictions with conspicuous signage," he said.

In addition to these measures, a no-watering time zone will be in place, when no watering of any sort, other than with a hand-held hose, may be conducted. As of June 1, watering with automatic irrigation systems may not occur after 5 a.m. or before 7 p.m.

"This no-watering time zone will be reviewed once the Custer Road pump station and the additional water main are completed later this year. That additional capacity may allow us to shorten the no-watering time zone," said Jefferson.

To assist residents and business owners with compliance and implementation of the new restrictions, the Town has scheduled some seminars on conservation, lawn maintenance and rain-harvesting, said Jaromin.

"We’ll sponsor seminars once a month during the summer at Frontier Park to give residents some ideas on how to maintain their lawns through the driest, hottest part of the year," he said.

There are other exceptions and conditions related to Stage 3 that can be obtained by visiting

www.prospertx.gov.