Make us your home page
Instagram

Today’s top headlines delivered to you daily.

(View our Privacy Policy)

Man, nature both to blame for threats to Alafia River's water

RIVERVIEW — It's been a difficult couple of years for the Alafia River.

A 2007 ammonia leak killed fish and caused algae blooms. Rampant development brought waves of untreated water. The prolonged drought has slowed its flow to a trickle — 20 percent of its historical monthly average, and officials want to siphon off even more water. Phosphorus produced by nature and industry courses through the river.

While the Alafia — Riverview's best-known natural landmark — seems to be enduring its recent woes, experts and officials say things are stable but far from ideal.

The confluence of problems poses a threat to wildlife that depend on the river, said Peter Clark, director of Tampa Bay Watch.

Clark ticks off the trickle-down effects of drought, development and phosphate: Too much algae and too little water threatens sea grass beds at the river's mouth. That means mullet, shrimp and other marine life have a harder time finding food and shelter, in turn affecting birds that feed on sea creatures.

Clean-water rules that cracked down on industrial discharges began paying dividends for the Alafia in the 1980s, said Richard Boler, a water quality specialist with the Hillsborough County Environmental Protection Commission.

"I've been doing water-quality work for over 30 years and it's always been bad, [though] not as bad as it used to be," he said.

Phosphorus levels, which haven't changed much in 10 years, remain a problem, he said.

The Alafia, Boler said, has naturally high phosphorus levels because it's present in riverbed rock. Industry along the river also contributes to the phosphorus load, he added.

While industry has made strides in environmental protection over the years and isn't breaking any rules, Boler considers the river's water quality to be poor.

Officials from the Mosaic Co., which runs several mines and a fertilizer-processing plant in the Alafia watershed, say algae blooms are rare in rivers. The company's operations, they note, comply with all environmental regulations.

"Are there nutrients in our discharges? Yes," said David Townsend, Mosaic assistant vice president of public affairs. "But we are committed to always meeting our permits."

Many Florida waterways, not just those near Mosaic's operations, have an abundance of algae-producing nutrients, said David Jellerson, Mosaic's assistant vice president for environmental issues.

Mosaic spent $30 million to boost water-storage capacity at a Riverview fertilizer plant after Hurricane Frances. During the 2004 storm, a breached dike at the plant — then owned by Cargill — allowed some 60,000 gallons of contaminated wastewater to pour into Archie Creek, which flows into the Tampa Bay. The changes, Mosaic officials said, are meant to prevent the accidental overflow of acidic gypsum stack water.

Both environmental and phosphate-industry officials agree that scattered sources — such as greasy runoff from cars and untreated stormwater — also put the river at risk.

It's much easier to identify and fix a problematic pipe or pond, however, than to hunt down the myriad decentralized sources of water pollution, Boler said.

"That's a much more difficult task," he said.

Long-term population growth also weighs on the river by bringing more grimy runoff, Clark said. Meanwhile, Tampa Bay Water is looking to draw more water from the Alafia, said Paula Dye, chief environmental planner for the regional water provider.

Four years of below-average rainfall, Dye said, have made it nearly impossible in recent months to withdraw the permitted 52 million gallons a day from the Alafia.

Still, water managers are investigating whether more water could be taken from the Alafia without harming it. Proposals for future development of water resources, Dye said, include increased use of the river's water.

At stake is the delicate ecological balance between the river and Tampa Bay. Estuaries are so ecologically and commercially valuable, Clark said, because they're the habitat where many juvenile species of fish can find food and shelter.

That, Clark said, makes the Alafia's freshwater invaluable to marine life.

"You lose the fish that depend on the freshwater inflow," he said.

Some riverside businesses and residents worry that low water levels and more development will ruin the river.

The drought and dry-season declines in water levels have scratched many canoe trips on the upper end of the river, said Sybil Cribbs, owner of Alafia River Canoe Rentals in Valrico. Her business now only operates on weekends because of low-water conditions.

"Customers call to ask about river conditions and say, 'I think I'll wait till it rains,' " she said.

Rich Hollis, co-owner of Dixie's Dockside in Gibsonton, said there are days when he can't take his boat out because the water is so low. Another decline, he said, spells trouble for his business because some customers won't be able to arrive by boat.

"Our customers want to be able to get in and out," he said.

At the Beer Shed, a waterfront bar in Riverview, Fred Schmid, 68, nurses a Budweiser. The retired commercial fisherman says that the river seems cleaner than when he moved here in 1988, but he has reservations about the future.

"Too much development," he said, "That's what causes all the pollution — human beings."

Times Staff Writer Victoria Bekiempis can be reached at (813) 661-2442 or vbekiempis@sptimes.com.

A river under duress

November 2007 .

A teenager drills into an ammonia pipeline along the Alafia River at U.S. 301, prompting evacuations and causing fish kills. No lasting environmental damage was found.

December 2005

A leaky pipeline at Mosaic's Riverview plant spills 40,000 gallons of hazardous material. Hundreds of small fish die in Archie Creek.

September 2004

About 65 million gallons of contaminated wastewater spill into Archie Creek after a dam breaks during Hurricane Frances at Cargill's Riverview plant. Cargill Crop Nutrition and IMC Global Inc. merged in October 2004 and now operate as Mosaic.

December 1997

Fifty million gallons of wastewater containing phosphoric acid escapes from Mulberry Phosphates, killing thousands of fish and marine life in the Alafia River.

July 1992

The Florida Department of Environmental Regulation finds a Mobil Oil Corp. subsidiary responsible for draining more than 2 million gallons of tainted water that contaminated the Alafia River.

Source: Times archives.

Man, nature both to blame for threats to Alafia River's water 03/12/09 [Last modified: Thursday, March 12, 2009 4:31am]
Photo reprints | Article reprints

© 2017 Tampa Bay Times

    

Join the discussion: Click to view comments, add yours

Loading...
  1. Review / photos: Sunset Music Festival brings Major Lazer, safety upgrades to Raymond James Stadium in Tampa

    Blogs

    Somewhere beyond the barricades and mountainous LED stages of the Sunset Music Festival, there had to be worry. There had to thousands of parents in parking lots and empty kitchens, anxiously distracting their minds, every now and then checking their phones.

    Major Lazer headlined the Sunset Music Festival on May 27, 2017 at Raymond James Stadium in Tampa.
  2. 24-year-old man charged with murder in shooting at Andrea Cove Motel

    LARGO — Pinellas sheriff's officers arrested a 24-year-old transient man Saturday in connection with a homicide at the Andrea Cove Motel in unincorporated Largo.

  3. Photo gallery: Calvary Christian rolls to state title

    Blogs

    View a gallery of images from Calvary Christian's defeat of Pensacola Catholic 11-1 in six innings Saturday night at Hammond Stadium in Ft. Myers for the Class 4A title.

    Calvary Christian players circle up on the field before the FHSAA class 4A baseball championship against Pensacola Catholic on Friday May 27, 2017 at Hammond Stadium in Fort Myers, Fla. Calvary scored 6 runs in the first inning, and had 7 hits.
  4. Two girls found safe after being reported missing in New Port Richey

    UPDATE: Both girls were found safe Saturday night, police said.

  5. IT failure blamed for British Airways cancellations (w/video)

    Airlines

    LONDON — British Airways canceled all flights from London's Heathrow and Gatwick airports on Saturday as a global IT failure upended the travel plans of tens of thousands of people on a busy U.K. holiday weekend.

    Passengers wait at a British Airways check-in desk after the airport suffered an IT systems failure Saturday at London''s Gatwick Airport. [Associated Press]