Civic Intelligence

Hydro-Environmental Technologies Inc.

Plan context: Hydro-Environmental Technologies Inc. 401K Plan

EIN 14-1676958 • Acton, MA • 27 filings • 3 plans

54 Nonset PathActon, MA 01720
Current Snapshot

Latest Year

2025

2025 Participants

40

2025 Assets

$7,722,593

2025 Contributions

$391,887

Historical Graphs

Total Assets Over Time

Aggregate end-of-year assets by filing year, excluding zero-asset years

$7,722,593$3,861,297$0199920152025YearValue
$7,722,593Latest year 2025

Participants Over Time

Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans

40200199920122025YearValue
40Latest year 2025

Company Timeline

Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.

Year / FilingFilingsParticipantsAssetsContributionsContrib./Participant
2025140$7,722,593$391,887$9,797iApproximate average salary by contribution assumption: employee only about $244,929 at 4% or $163,286 at 6%; with 50% employer match about $163,286 at 4% or $108,858 at 6%; with 100% employer match about $122,465 at 4% or $81,643 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-40$7,722,593$391,887$9,797iApproximate average salary by contribution assumption: employee only about $244,929 at 4% or $163,286 at 6%; with 50% employer match about $163,286 at 4% or $108,858 at 6%; with 100% employer match about $122,465 at 4% or $81,643 at 6%.
2024140$7,062,245$440,534$11,013iApproximate average salary by contribution assumption: employee only about $275,334 at 4% or $183,556 at 6%; with 50% employer match about $183,556 at 4% or $122,371 at 6%; with 100% employer match about $137,667 at 4% or $91,778 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-40$7,062,245$440,534$11,013iApproximate average salary by contribution assumption: employee only about $275,334 at 4% or $183,556 at 6%; with 50% employer match about $183,556 at 4% or $122,371 at 6%; with 100% employer match about $137,667 at 4% or $91,778 at 6%.
2023133$5,786,065$396,462$12,014iApproximate average salary by contribution assumption: employee only about $300,350 at 4% or $200,233 at 6%; with 50% employer match about $200,233 at 4% or $133,489 at 6%; with 100% employer match about $150,175 at 4% or $100,117 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-33$5,786,065$396,462$12,014iApproximate average salary by contribution assumption: employee only about $300,350 at 4% or $200,233 at 6%; with 50% employer match about $200,233 at 4% or $133,489 at 6%; with 100% employer match about $150,175 at 4% or $100,117 at 6%.
2022133$4,716,474$283,525$8,592iApproximate average salary by contribution assumption: employee only about $214,792 at 4% or $143,194 at 6%; with 50% employer match about $143,194 at 4% or $95,463 at 6%; with 100% employer match about $107,396 at 4% or $71,597 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-33$4,716,474$283,525$8,592iApproximate average salary by contribution assumption: employee only about $214,792 at 4% or $143,194 at 6%; with 50% employer match about $143,194 at 4% or $95,463 at 6%; with 100% employer match about $107,396 at 4% or $71,597 at 6%.
2021128$5,317,833$339,881$12,139iApproximate average salary by contribution assumption: employee only about $303,465 at 4% or $202,310 at 6%; with 50% employer match about $202,310 at 4% or $134,873 at 6%; with 100% employer match about $151,733 at 4% or $101,155 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-28$5,317,833$339,881$12,139iApproximate average salary by contribution assumption: employee only about $303,465 at 4% or $202,310 at 6%; with 50% employer match about $202,310 at 4% or $134,873 at 6%; with 100% employer match about $151,733 at 4% or $101,155 at 6%.
2020126$4,799,081$313,517$12,058iApproximate average salary by contribution assumption: employee only about $301,459 at 4% or $200,972 at 6%; with 50% employer match about $200,972 at 4% or $133,982 at 6%; with 100% employer match about $150,729 at 4% or $100,486 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-26$4,799,081$313,517$12,058iApproximate average salary by contribution assumption: employee only about $301,459 at 4% or $200,972 at 6%; with 50% employer match about $200,972 at 4% or $133,982 at 6%; with 100% employer match about $150,729 at 4% or $100,486 at 6%.
2019126$3,959,412$243,402$9,362iApproximate average salary by contribution assumption: employee only about $234,040 at 4% or $156,027 at 6%; with 50% employer match about $156,027 at 4% or $104,018 at 6%; with 100% employer match about $117,020 at 4% or $78,013 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-26$3,959,412$243,402$9,362iApproximate average salary by contribution assumption: employee only about $234,040 at 4% or $156,027 at 6%; with 50% employer match about $156,027 at 4% or $104,018 at 6%; with 100% employer match about $117,020 at 4% or $78,013 at 6%.
2018126$3,146,058$267,472$10,287iApproximate average salary by contribution assumption: employee only about $257,185 at 4% or $171,456 at 6%; with 50% employer match about $171,456 at 4% or $114,304 at 6%; with 100% employer match about $128,592 at 4% or $85,728 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-26$3,146,058$267,472$10,287iApproximate average salary by contribution assumption: employee only about $257,185 at 4% or $171,456 at 6%; with 50% employer match about $171,456 at 4% or $114,304 at 6%; with 100% employer match about $128,592 at 4% or $85,728 at 6%.
2017123$3,133,497$232,762$10,120iApproximate average salary by contribution assumption: employee only about $253,002 at 4% or $168,668 at 6%; with 50% employer match about $168,668 at 4% or $112,445 at 6%; with 100% employer match about $126,501 at 4% or $84,334 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-23$3,133,497$232,762$10,120iApproximate average salary by contribution assumption: employee only about $253,002 at 4% or $168,668 at 6%; with 50% employer match about $168,668 at 4% or $112,445 at 6%; with 100% employer match about $126,501 at 4% or $84,334 at 6%.
2016120$2,474,193$160,324$8,016iApproximate average salary by contribution assumption: employee only about $200,405 at 4% or $133,603 at 6%; with 50% employer match about $133,603 at 4% or $89,069 at 6%; with 100% employer match about $100,203 at 4% or $66,802 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-20$2,474,193$160,324$8,016iApproximate average salary by contribution assumption: employee only about $200,405 at 4% or $133,603 at 6%; with 50% employer match about $133,603 at 4% or $89,069 at 6%; with 100% employer match about $100,203 at 4% or $66,802 at 6%.
2015123$2,161,584$151,563$6,590iApproximate average salary by contribution assumption: employee only about $164,742 at 4% or $109,828 at 6%; with 50% employer match about $109,828 at 4% or $73,219 at 6%; with 100% employer match about $82,371 at 4% or $54,914 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-23$2,161,584$151,563$6,590iApproximate average salary by contribution assumption: employee only about $164,742 at 4% or $109,828 at 6%; with 50% employer match about $109,828 at 4% or $73,219 at 6%; with 100% employer match about $82,371 at 4% or $54,914 at 6%.
2014120$2,181,457$180,643$9,032iApproximate average salary by contribution assumption: employee only about $225,804 at 4% or $150,536 at 6%; with 50% employer match about $150,536 at 4% or $100,357 at 6%; with 100% employer match about $112,902 at 4% or $75,268 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-20$2,181,457$180,643$9,032iApproximate average salary by contribution assumption: employee only about $225,804 at 4% or $150,536 at 6%; with 50% employer match about $150,536 at 4% or $100,357 at 6%; with 100% employer match about $112,902 at 4% or $75,268 at 6%.
2013119$1,847,830$95,999$5,053iApproximate average salary by contribution assumption: employee only about $126,314 at 4% or $84,210 at 6%; with 50% employer match about $84,210 at 4% or $56,140 at 6%; with 100% employer match about $63,157 at 4% or $42,105 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-19$1,847,830$95,999$5,053iApproximate average salary by contribution assumption: employee only about $126,314 at 4% or $84,210 at 6%; with 50% employer match about $84,210 at 4% or $56,140 at 6%; with 100% employer match about $63,157 at 4% or $42,105 at 6%.
2012122$1,431,730$79,621$3,619iApproximate average salary by contribution assumption: employee only about $90,478 at 4% or $60,319 at 6%; with 50% employer match about $60,319 at 4% or $40,213 at 6%; with 100% employer match about $45,239 at 4% or $30,159 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-22$1,431,730$79,621$3,619iApproximate average salary by contribution assumption: employee only about $90,478 at 4% or $60,319 at 6%; with 50% employer match about $60,319 at 4% or $40,213 at 6%; with 100% employer match about $45,239 at 4% or $30,159 at 6%.
2011122$1,503,056$82,093$3,732iApproximate average salary by contribution assumption: employee only about $93,288 at 4% or $62,192 at 6%; with 50% employer match about $62,192 at 4% or $41,461 at 6%; with 100% employer match about $46,644 at 4% or $31,096 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-22$1,503,056$82,093$3,732iApproximate average salary by contribution assumption: employee only about $93,288 at 4% or $62,192 at 6%; with 50% employer match about $62,192 at 4% or $41,461 at 6%; with 100% employer match about $46,644 at 4% or $31,096 at 6%.
2010123$1,528,482$110,103$4,787iApproximate average salary by contribution assumption: employee only about $119,677 at 4% or $79,785 at 6%; with 50% employer match about $79,785 at 4% or $53,190 at 6%; with 100% employer match about $59,839 at 4% or $39,892 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-23$1,528,482$110,103$4,787iApproximate average salary by contribution assumption: employee only about $119,677 at 4% or $79,785 at 6%; with 50% employer match about $79,785 at 4% or $53,190 at 6%; with 100% employer match about $59,839 at 4% or $39,892 at 6%.
2009126$1,244,427$46,096$1,773iApproximate average salary by contribution assumption: employee only about $44,323 at 4% or $29,549 at 6%; with 50% employer match about $29,549 at 4% or $19,699 at 6%; with 100% employer match about $22,162 at 4% or $14,774 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-26$1,244,427$46,096$1,773iApproximate average salary by contribution assumption: employee only about $44,323 at 4% or $29,549 at 6%; with 50% employer match about $29,549 at 4% or $19,699 at 6%; with 100% employer match about $22,162 at 4% or $14,774 at 6%.
2008127$0$0-
Hydro-Environmental Technologies Inc. 401K Plan-27---
2007120$0$0-
Hydro-Environmental Technologies Inc. 401K Plan-20---
2006122$1,440,572$166,840$7,584iApproximate average salary by contribution assumption: employee only about $189,591 at 4% or $126,394 at 6%; with 50% employer match about $126,394 at 4% or $84,263 at 6%; with 100% employer match about $94,795 at 4% or $63,197 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-22$1,440,572$166,840$7,584iApproximate average salary by contribution assumption: employee only about $189,591 at 4% or $126,394 at 6%; with 50% employer match about $126,394 at 4% or $84,263 at 6%; with 100% employer match about $94,795 at 4% or $63,197 at 6%.
2005122$1,423,879$155,689$7,077iApproximate average salary by contribution assumption: employee only about $176,919 at 4% or $117,946 at 6%; with 50% employer match about $117,946 at 4% or $78,631 at 6%; with 100% employer match about $88,460 at 4% or $58,973 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-22$1,423,879$155,689$7,077iApproximate average salary by contribution assumption: employee only about $176,919 at 4% or $117,946 at 6%; with 50% employer match about $117,946 at 4% or $78,631 at 6%; with 100% employer match about $88,460 at 4% or $58,973 at 6%.
2004128$1,241,743$154,608$5,522iApproximate average salary by contribution assumption: employee only about $138,043 at 4% or $92,029 at 6%; with 50% employer match about $92,029 at 4% or $61,352 at 6%; with 100% employer match about $69,021 at 4% or $46,014 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-28$1,241,743$154,608$5,522iApproximate average salary by contribution assumption: employee only about $138,043 at 4% or $92,029 at 6%; with 50% employer match about $92,029 at 4% or $61,352 at 6%; with 100% employer match about $69,021 at 4% or $46,014 at 6%.
2003123$936,940$129,311$5,622iApproximate average salary by contribution assumption: employee only about $140,555 at 4% or $93,704 at 6%; with 50% employer match about $93,704 at 4% or $62,469 at 6%; with 100% employer match about $70,278 at 4% or $46,852 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-23$936,940$129,311$5,622iApproximate average salary by contribution assumption: employee only about $140,555 at 4% or $93,704 at 6%; with 50% employer match about $93,704 at 4% or $62,469 at 6%; with 100% employer match about $70,278 at 4% or $46,852 at 6%.
2002122$0$0-
Hydro-Environmental Technologies Inc. 401K Plan-22---
2001123$0$0-
Hydro-Environmental Technologies Inc. 401K Plan-23---
2000121$0$0-
Hydro-Environmental Technologies Inc. 401K Plan-21---
1999124$672,854$94,273$3,928iApproximate average salary by contribution assumption: employee only about $98,201 at 4% or $65,467 at 6%; with 50% employer match about $65,467 at 4% or $43,645 at 6%; with 100% employer match about $49,101 at 4% or $32,734 at 6%.
Hydro-Environmental Technologies Inc. 401K Plan-24$672,854$94,273$3,928iApproximate average salary by contribution assumption: employee only about $98,201 at 4% or $65,467 at 6%; with 50% employer match about $65,467 at 4% or $43,645 at 6%; with 100% employer match about $49,101 at 4% or $32,734 at 6%.