Conditions at the site along the Detroit River where a collapsed dock sent construction aggregate material into the Detroit River are deteriorating and the short-term steps the companies' actions to prevent further shoreline erosion and contain the spilled materials are inadequate, the state said Thursday.

The Michigan Department of Environment, Great Lakes and Energy staff said in an update that a 5-foot silt curtain does not surround the area of the bank failure, the southern portion of the bank collapse is not protected adequately from erosion and a sinkhole at the site is developing rapidly and growing and allowing additional materials from the property, including aggregate and contaminated soils, to enter the river. EGLE called for an expedited evaluation of the sinkhole and development of a plan to prevent further discharges of contaminated soils and aggregate into the river.

EGLE informed Revere Dock LLC, the owner of the collapsed dock site, and Detroit Bulk Storage Inc., which is leasing the site, that the steps they have taken so far are not enough. New plans are due to the state by Jan. 24, EGLE spokesman Nick Assendelft said. The state told the companies to detail longer-term and more specific plans to remediate the site, including an assessment of the sinkhole and proposed measures to ensure further contaminated soils and aggregate are not discharged into the Detroit River.

Revere and Detroit Bulk Storage spelled out their plans in letters sent to EGLE on Jan. 10.

On Friday, EGLE Remediation and Redevelopment Division staff were on the Detroit River to survey the collapsed dock and soils within the impacted river area. The findings will be used to map the river bottom, showing the extent of the collapsed dock and soils within the Detroit River.

Meanwhile, Revere Dock has been hit with a $10,000 fine for storing nearly 40,000 tons of limestones on its dock without a permit since July, said David Bell, the director of the city of Detroit's Buildings, Safety Engineering and Environmental Department.

"The fact is they have been illegally operating, and so we're going to make them feel it," Bell told The Detroit News on Tuesday. "It's very frustrating to me that a property owner would operate in this manner."

The illegal operation came to light during the investigation into the Nov. 26 dock collapse that spilled an unknown amount of limestone construction aggregate material into the river. The U.S. Environmental Protection Agency found uranium, lead, several chemicals and heavy metals during testing of water samples at the industrial site.

A new round of water testing at the site revealed no impact on water quality, Great Lakes Water Authority officials said Thursday, The Detroit News reported.

Revere Dock has owned the site since 2015 and leased it to Detroit Bulk Storage, which is a sand and gravel storage yard business.

Bell noted that although the owner obtained permits in August 2016 for site alterations and improvements, Revere Dock "did not ever" submit a permit to have storage of aggregate materials.

Since last Thursday, Bell's department has issued 28 tickets for violations stemming from the spill, he said, noting that citations have been steady, amounting to about $2,800 per day.

Adam Patton, a consultant Revere Dock hired to oversee its response plan to the state, declined the newspaper's request for comment. Detroit Bulk Storage Vice President Noel Frye deferred comment to the site owner. The newspaper couldn't reach the site owner Tuesday.

On Thursday, the Michigan Department of Environment, Great Lakes and Energy (EGLE) informed the companies that it considers inadequate the steps they have taken so far to contain the impact of the aggregate spill into the Detroit River. New plans are due to the state by Jan. 24, according to EGLE spokesman Nick Assendelft.

Revere and Detroit Bulk Storage spelled out their plans in letters sent to EGLE on Jan. 10.

Gary Brown, the city's director of Water and Sewerage Department, told council members Monday that the water "is as safe today as it was the day before the spill, and the day after."

"We have a contained pipe water system," Brown said. "I'm not saying that there's not an environmental issue with contaminated soil. I'm saying it can't get into the water system."

The site, formerly occupied by the Revere Copper and Brass Corp., produced uranium materials in the 1940s and 1950s. That company was a subcontractor for the Manhattan Project, which developed the atomic bomb during World War II, U.S. Department of Energy documents show.