Twin Harbors will be open for six days of razor clam digging beginning Monday, while three other beaches will open later in the week.

The dig will proceed if tests show the clams are safe to eat.

With the best digging taking place around the evening low tide, no digging will be allowed before noon.

Here are the beaches that are open and the low tide times:

Monday: 5:16 p.m., -0.1 feet, Twin Harbors

Tuesday: 5:52 p.m., -0.3 feet, Twin Harbors

Wednesday: 6:27 p.m., -0.4 feet, Twin Harbors

Thursday: 7:01 p.m., -0.4 feet, Long Beach and Twin Harbors

Friday: 7:35 p.m., -0.3 feet, Long Beach, Twin Harbors, Copalis and Mocrocks

Saturday: 8:10 p.m., -0.1 feet, Long Beach, Twin Harbors, Copalis and Mocrocks

Wildlife managers at Olympic National Park, which governs digs at Kalalaoch, have opted to keep that beach closed so far this season. The park, working with the state Department of Fish and Wildlife, is concerned about clam populations on the beaches at Kalaloch.

“The park has still not made an official decision on the status of the 2012-2013 razor clam harvest season at Kalaloch beach, as we are still awaiting some final data from our partners from the pre-season stock assessment,” said Steven Fradkin, coastal ecologist for the park.

“However, the bulk of the data that we do have suggests that the Kalaloch population is significantly depressed with smaller and fewer clams, relative to last year’s population,” he said.

Preliminary population data shows about a 60 percent decrease from last year.

Kalaloch beaches were open for just three days of digging in the 2011-12 season. Managers opted to wait until April before opening the beach. During those three digs, almost 1,300 diggers averaged 2.3 clams a day.

“I think it is unlikely that we’ll have a harvest this season, however the final decision will be made once we have a full dataset in hand,” Fradkin said.

Digs have been tentatively set for various beaches Dec. 11-16 and Dec. 28-31. Details for those digs are available at goo.gl/ooxEO.

Clam diggers are limited to 15 razor clams per day, and are required to keep the first 15 clams they dig. Each digger’s clams must be kept in a separate container.

All diggers age 15 or older must have an applicable 2012-13 fishing license to harvest razor clams on any beach. Licenses, ranging from a three-day razor clam license to an annual combination fishing license, are available online at fishhunt.dfw.wa.gov and from license vendors around the state.