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July 2010 - Community Impact Newspaper

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16 | <strong>July</strong> <strong>2010</strong> <strong>Community</strong> <strong>Impact</strong> <strong>Newspaper</strong> • Lake Travis/Westlake Edition<br />

Water quality<br />

CONTINUED FROM | 1<br />

and will become more so once the city<br />

expands its wastewater facilities.<br />

Cost of irrigation<br />

Burnet Assistant City Manager David<br />

Vaughn, said the city is looking for other<br />

irrigation options, such as expanding effluent<br />

to irrigate its parks, but still believes<br />

the city will need to discharge water into<br />

Hamilton Creek. Burnet’s wastewater project<br />

will be more expensive than originally<br />

expected and cities that plan to irrigate<br />

must retain enough land for irrigation or<br />

build ponds to retain the water, which can<br />

be costly. Vaughn said discharging effluent<br />

would be the least expensive option.<br />

“One of the things people have said is<br />

why would you ask for a permit if that is not<br />

what you intend to [use it for]? One of the<br />

biggest reasons is simply cost. We started<br />

with a $4 million project, and now we’re<br />

staring $15 [million] in the face,” Vaughn<br />

said. “That’s a scary proposition as it is.<br />

Obviously, we’re going to have to increase<br />

rates significantly to our rate payers [to]<br />

pay the $15 million, and we’re not in a position<br />

to pay several million [dollars] more<br />

for holding ponds and land capacity or an<br />

irrigation-only permit.”<br />

Discharge ban<br />

Many groups concerned about the<br />

lake’s water quality already rallied<br />

together to ensure a discharge ban was<br />

not overturned by TCEQ late last year.<br />

The ban, adopted in the late 1980s, prohibits<br />

the discharge of pollutants, including<br />

effluent, into the Highland Lakes. The<br />

discharge ban only affects those within<br />

10 miles of the lakes, leaving Burnet just<br />

outside the affected area.<br />

TCEQ chose to leave the ban in place<br />

because it is unsure how added nutrients<br />

would effect the water. Nutrients include<br />

nitrate, phosphorus, nitrogen and ammonia,<br />

all of which can cause excessive<br />

algae growth, that turns water green and<br />

decreases oxygen in the water.<br />

“One of the things wastewater does to a<br />

water body is provide nutrients. Because we<br />

don’t have any numerical nutrient standards<br />

in place for the reservoirs, there was no<br />

way to measure whether or not additional<br />

nutrients were causing degradation in water<br />

quality or not,” said Lisa Hatzenbuehler,<br />

Water Resource Protection manager for the<br />

Lower Colorado River Authority.<br />

LCRA, a conservation and reclamation<br />

district created by the Texas Legislature<br />

in 1934, is tasked with a variety of roles<br />

in Central Texas, one of which is to manage<br />

the water supply and environment of<br />

the Lower Colorado River Basin. LCRA<br />

filed a Request to Comment to the TCEQ<br />

in November 2009, with a follow-up letter<br />

in February <strong>2010</strong> because the district has<br />

concerns about Burnet’s proposed agreement.<br />

Specifically, LCRA raises concerns<br />

about the city being allowed to discharge<br />

into Hamilton Creek during low-flow time<br />

periods, such as droughts, and the amount<br />

of nutrients that would be added to the lake.<br />

While there are not yet standards in place<br />

for how much nutrients could be added<br />

with minimal effect, TCEQ is working on<br />

getting them in place. Once those standards<br />

are approved, there could be another<br />

re-evaluation of the ban.<br />

Increasing effluent<br />

For now, TCEQ is focused on determining<br />

whether to approve Burnet’s request.<br />

The new agreement would increase Burnet’s<br />

water discharge rate to 1.7 million gallons<br />

per day from its current allowable rate<br />

of 726,000 gallons.<br />

The current agreement allows Burnet’s<br />

wastewater to enter the creek at a lower<br />

treatment level than the amended version<br />

would allow. However, under the current<br />

agreement, the city has not been releasing<br />

its allowable amount regularly—it has<br />

only discharged six times in the last six<br />

years. This means if the city began releasing<br />

1.7 million gallons daily, it would not just<br />

double the amount but would drastically<br />

change the current discharge rate. While<br />

it is possible Burnet may not take advantage<br />

of the allowable amount, there would<br />

be nothing to stop the city from doing so if<br />

TCEQ approved the agreement.<br />

“If you turn that around and start discharging<br />

every day, then obviously you’re<br />

going to have wastewater in there every day<br />

and there will be more wastewater more<br />

frequently,” Hatzenbuehler said.<br />

One solution LCRA is proposing to Burnet<br />

is to allow the city to discharge only<br />

on days when there is a flow amount of<br />

4-cubic-feet per second in the creek.<br />

“That flow amount happens more than<br />

50 percent of the time, so if there’s water in<br />

the creek that often, it would help dilute the<br />

wastewater flowing into Lake Travis eventually,”<br />

Hatzenbuehler said.<br />

Some of the groups that rallied together to<br />

oppose the discharge ban, including Protect<br />

Lake Travis Association and TCWCID #17,<br />

are trying to ensure Burnet’s permit request<br />

is not approved without LCRA’s proposal.<br />

PLTA President Lonnie Moore, who represents<br />

a variety of lake users from lakefront<br />

property owners to scuba divers, said his<br />

group supports LCRA’s proposal but would<br />

prefer no dumping of effluent at all.<br />

“We would prefer if the LCRA went a little<br />

further, but we would be basically satisfied if<br />

the LCRA accomplishes what they’re asking<br />

for,” Moore said. “If it were up to us, in a perfect<br />

world, there would be no discharge into<br />

the creek at all, but we’re realistic in what<br />

can be accomplished.”<br />

He said once the permit agreement is<br />

finalized, PLTA will try to work cooperatively<br />

with Burnet to avoid discharging<br />

effluent into the creek on a voluntary basis.<br />

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LCRA has requested a contested hearing<br />

agreement unless Burnet can resolve LCRA’s<br />

concerns. The earliest a contested hearing<br />

would likely occur is August. Vaughn said<br />

the city hopes to have an agreement with<br />

LCRA and its wastewater permit amended<br />

by TCEQ by the end of the summer.<br />

Timeline<br />

City of Burnet faced with the need<br />

to double its wastewater facilities<br />

and requests TCEQ to amend its<br />

wastewater permit<br />

November: LCRA submits comment<br />

letter to TCEQ and begins working<br />

with Burnet to reach an agreement to<br />

address LCRA’s concerns<br />

February: LCRA sends a follow-up<br />

letter to TCEQ recommending<br />

additional provisions if an amended<br />

discharge permit is granted<br />

August: City of Burnet expects an<br />

agreement to be made<br />

Summer: The earliest Burnet believes<br />

it could begin construction of a new<br />

$20 million wastewater plant to replace<br />

its current one<br />

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2008<br />

2009<br />

<strong>2010</strong><br />

Water flow from the City of Burnet to Lake Travis<br />

Lake Lyndon B.<br />

Johnson<br />

N<br />

962<br />

Inks Lake<br />

Marble<br />

Falls<br />

Lake<br />

Marble<br />

Falls<br />

29<br />

281<br />

Hamilton Pool Rd.<br />

Burnet<br />

71<br />

2011<br />

City of Burnet<br />

Wastewater<br />

Treatment Plant<br />

Comment at more.impactnews.com/8906<br />

Effluent, or wastewater, from<br />

the City of Burnet Wastewater<br />

Treatment Plant flows into<br />

Hamilton Creek, which winds its<br />

way into Lake Travis.<br />

Briarcliff<br />

Lake Travis<br />

Lago Vista<br />

29<br />

• Burnet plans to build a new<br />

plant that will double the<br />

amount of effluent.<br />

• Construction on the plant is<br />

expected to begin summer 2011.<br />

• Burnet is looking for ways to<br />

use more effluent in irrigation,<br />

but city staff believes it will have<br />

more effluent than can be used.<br />

Lakeway

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