Hydrogeologic, Inc. 401(k) Plan: Login, Facts & Contact Information

Hydrogeologic, Inc. 401(k) Plan Facts

Plan name
HYDROGEOLOGIC, INC. 401(K) PROFIT SHARING PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
HYDROGEOLOGIC, INC.
Participants
896 (573 active employees)
Former employees with a balance
144
Plan assets
$92,209,526 at Dec 31, 2024
Average account balance
$130,239 across 708 accounts
Employer contributions
$1,624,893 in plan year 2024 (18% of all contributions)
Recordkeeper
Principal Life Insurance Company
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1989
✓ Employer contributions✓ Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments— Self-directed brokerage window✓ Profit sharing— Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Sep 18, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $9.16 million went into the plan in contributions, $1.62 million of it from the employer (18%).
  • $5.95 million was paid out to participants.
  • Investment and other income added $11.2 million.
  • Administrative expenses were $175,825, about $248 per account.

How the Hydrogeologic, Inc. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019439$47.3 million$853,164$1.72 million
2020448$55.9 million$720,522$2.35 million
2021506$69.8 million$1.06 million$1.23 million
2022567$61.1 million$1.54 million$2.79 million
2023800$78.0 million$1.63 million$1.93 million
2024896$92.2 million$1.62 million$5.95 million

Hydrogeologic, Inc. 401(k) Contact Information

Phone
703-994-4281
Mailing address
11107 SUNSET HILLS ROAD STE 400, RESTON VA 201905375
Plan sponsor
HYDROGEOLOGIC, INC.
Employer identification number (EIN)
54-1404852
Plan number
001

Questions about the Hydrogeologic, Inc. 401(k)

Does Hydrogeologic, Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $1.62 million, 18% of all contributions.

Does the Hydrogeologic, Inc 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Hydrogeologic, Inc 401(k) plan?

896 participants at the start of plan year 2024, 573 of them active employees, and 144 former employees who still had money in the plan.

What is the average 401(k) balance at Hydrogeologic, Inc?

About $130,239 per account: $92.2 million in plan assets across 708 accounts with a balance at the end of plan year 2024.

Who manages the Hydrogeologic, Inc 401(k) accounts?

Principal (listed on the filing as PRINCIPAL LIFE INSURANCE COMPANY) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Hydrogeologic, Inc. How do I access my 401(k)?

Your account stays with Principal after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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