Intermountain Power Service Corporation
Plan context: The Retirement Plan for Employees of Intermountain Power Service Corporation
EIN 87-0388573 • Delta, UT • 119 filings • 9 plans
Current Snapshot
Latest Year
2025
2025 Participants
164
2025 Assets
$546,533,638
2025 Contributions
$23,620,611
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
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 / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2025 | 1 | 164 | $0 | $0 | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 164 | - | - | - |
| 2024 | 4 | 298 | $546,533,638 | $23,620,611 | $79,264iApproximate average salary by contribution assumption: employee only about $1,981,595 at 4% or $1,321,063 at 6%; with 50% employer match about $1,321,063 at 4% or $880,709 at 6%; with 100% employer match about $990,797 at 4% or $660,532 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 297 | $330,466,642 | $15,000,000 | $50,505iApproximate average salary by contribution assumption: employee only about $1,262,626 at 4% or $841,751 at 6%; with 50% employer match about $841,751 at 4% or $561,167 at 6%; with 100% employer match about $631,313 at 4% or $420,875 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 246 | $113,434,099 | $8,268,342 | $33,611iApproximate average salary by contribution assumption: employee only about $840,279 at 4% or $560,186 at 6%; with 50% employer match about $560,186 at 4% or $373,457 at 6%; with 100% employer match about $420,139 at 4% or $280,093 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $102,632,897 | $352,269 | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 298 | - | - | - |
| 2023 | 4 | 317 | $522,311,090 | $16,791,063 | $52,969iApproximate average salary by contribution assumption: employee only about $1,324,216 at 4% or $882,811 at 6%; with 50% employer match about $882,811 at 4% or $588,541 at 6%; with 100% employer match about $662,108 at 4% or $441,405 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 315 | $314,936,219 | $10,000,000 | $31,746iApproximate average salary by contribution assumption: employee only about $793,651 at 4% or $529,101 at 6%; with 50% employer match about $529,101 at 4% or $352,734 at 6%; with 100% employer match about $396,825 at 4% or $264,550 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 309 | $111,278,967 | $6,388,487 | $20,675iApproximate average salary by contribution assumption: employee only about $516,868 at 4% or $344,579 at 6%; with 50% employer match about $344,579 at 4% or $229,719 at 6%; with 100% employer match about $258,434 at 4% or $172,289 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $96,095,904 | $402,576 | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 317 | - | - | - |
| 2022 | 4 | 322 | $490,064,451 | $29,492,335 | $91,591iApproximate average salary by contribution assumption: employee only about $2,289,778 at 4% or $1,526,518 at 6%; with 50% employer match about $1,526,518 at 4% or $1,017,679 at 6%; with 100% employer match about $1,144,889 at 4% or $763,259 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 321 | $300,699,324 | $20,442,979 | $63,685iApproximate average salary by contribution assumption: employee only about $1,592,132 at 4% or $1,061,422 at 6%; with 50% employer match about $1,061,422 at 4% or $707,614 at 6%; with 100% employer match about $796,066 at 4% or $530,711 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 322 | $102,272,183 | $8,096,487 | $25,144iApproximate average salary by contribution assumption: employee only about $628,609 at 4% or $419,073 at 6%; with 50% employer match about $419,073 at 4% or $279,382 at 6%; with 100% employer match about $314,305 at 4% or $209,536 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $87,092,944 | $952,869 | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 322 | - | - | - |
| 2021 | 4 | 345 | $568,884,881 | $16,547,071 | $47,963iApproximate average salary by contribution assumption: employee only about $1,199,063 at 4% or $799,375 at 6%; with 50% employer match about $799,375 at 4% or $532,917 at 6%; with 100% employer match about $599,532 at 4% or $399,688 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 342 | $366,856,013 | $4,500,000 | $13,158iApproximate average salary by contribution assumption: employee only about $328,947 at 4% or $219,298 at 6%; with 50% employer match about $219,298 at 4% or $146,199 at 6%; with 100% employer match about $164,474 at 4% or $109,649 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $107,459,670 | $4,090,665 | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 336 | $94,569,198 | $7,956,406 | $23,680iApproximate average salary by contribution assumption: employee only about $591,994 at 4% or $394,663 at 6%; with 50% employer match about $394,663 at 4% or $263,109 at 6%; with 100% employer match about $295,997 at 4% or $197,331 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 345 | - | - | - |
| 2020 | 4 | 371 | $560,619,778 | $32,550,032 | $87,736iApproximate average salary by contribution assumption: employee only about $2,193,398 at 4% or $1,462,266 at 6%; with 50% employer match about $1,462,266 at 4% or $974,844 at 6%; with 100% employer match about $1,096,699 at 4% or $731,133 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 366 | $349,325,637 | $6,063,296 | $16,566iApproximate average salary by contribution assumption: employee only about $414,160 at 4% or $276,106 at 6%; with 50% employer match about $276,106 at 4% or $184,071 at 6%; with 100% employer match about $207,080 at 4% or $138,053 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 361 | $115,862,391 | $7,147,286 | $19,799iApproximate average salary by contribution assumption: employee only about $494,964 at 4% or $329,976 at 6%; with 50% employer match about $329,976 at 4% or $219,984 at 6%; with 100% employer match about $247,482 at 4% or $164,988 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $95,431,750 | $19,339,450 | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 371 | - | - | - |
| 2019 | 4 | 385 | $478,687,030 | $17,837,341 | $46,331iApproximate average salary by contribution assumption: employee only about $1,158,269 at 4% or $772,179 at 6%; with 50% employer match about $772,179 at 4% or $514,786 at 6%; with 100% employer match about $579,134 at 4% or $386,090 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 381 | $312,956,942 | $6,711,071 | $17,614iApproximate average salary by contribution assumption: employee only about $440,359 at 4% or $293,573 at 6%; with 50% employer match about $293,573 at 4% or $195,715 at 6%; with 100% employer match about $220,179 at 4% or $146,786 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 376 | $98,649,744 | $7,197,876 | $19,143iApproximate average salary by contribution assumption: employee only about $478,582 at 4% or $319,055 at 6%; with 50% employer match about $319,055 at 4% or $212,703 at 6%; with 100% employer match about $239,291 at 4% or $159,527 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $67,080,344 | $3,928,394 | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 385 | - | - | - |
| 2018 | 4 | 385 | $424,924,255 | $27,812,618 | $72,241iApproximate average salary by contribution assumption: employee only about $1,806,014 at 4% or $1,204,009 at 6%; with 50% employer match about $1,204,009 at 4% or $802,673 at 6%; with 100% employer match about $903,007 at 4% or $602,005 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 381 | $275,002,982 | $11,963,530 | $31,400iApproximate average salary by contribution assumption: employee only about $785,009 at 4% or $523,339 at 6%; with 50% employer match about $523,339 at 4% or $348,893 at 6%; with 100% employer match about $392,504 at 4% or $261,670 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 384 | $100,251,441 | $9,583,129 | $24,956iApproximate average salary by contribution assumption: employee only about $623,902 at 4% or $415,934 at 6%; with 50% employer match about $415,934 at 4% or $277,290 at 6%; with 100% employer match about $311,951 at 4% or $207,967 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $49,669,832 | $6,265,959 | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 385 | - | - | - |
| 2017 | 5 | 423 | $449,293,881 | $13,494,934 | $31,903iApproximate average salary by contribution assumption: employee only about $797,573 at 4% or $531,715 at 6%; with 50% employer match about $531,715 at 4% or $354,477 at 6%; with 100% employer match about $398,786 at 4% or $265,858 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 423 | $297,955,388 | $6,202,760 | $14,664iApproximate average salary by contribution assumption: employee only about $366,593 at 4% or $244,396 at 6%; with 50% employer match about $244,396 at 4% or $162,930 at 6%; with 100% employer match about $183,297 at 4% or $122,198 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 413 | $102,934,560 | $6,181,774 | $14,968iApproximate average salary by contribution assumption: employee only about $374,199 at 4% or $249,466 at 6%; with 50% employer match about $249,466 at 4% or $166,311 at 6%; with 100% employer match about $187,100 at 4% or $124,733 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $48,403,933 | $1,110,400 | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 422 | - | - | - |
| Intermountain Power Service Corporation Master Trust | - | - | - | - | - |
| 2016 | 6 | 424 | $454,411,403 | $16,595,129 | $39,139iApproximate average salary by contribution assumption: employee only about $978,486 at 4% or $652,324 at 6%; with 50% employer match about $652,324 at 4% or $434,883 at 6%; with 100% employer match about $489,243 at 4% or $326,162 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 420 | $253,922,536 | $6,938,599 | $16,520iApproximate average salary by contribution assumption: employee only about $413,012 at 4% or $275,341 at 6%; with 50% employer match about $275,341 at 4% or $183,561 at 6%; with 100% employer match about $206,506 at 4% or $137,671 at 6%. |
| Intermountain Power Service Corporation Master Trust | - | - | $95,846,141 | - | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 330 | $61,392,442 | $3,487,882 | $10,569iApproximate average salary by contribution assumption: employee only about $264,233 at 4% or $176,156 at 6%; with 50% employer match about $176,156 at 4% or $117,437 at 6%; with 100% employer match about $132,117 at 4% or $88,078 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $43,250,284 | $3,932,957 | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 424 | - | - | - |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 0 | - | $2,235,691 | - |
| 2015 | 6 | 435 | $450,709,421 | $20,761,220 | $47,727iApproximate average salary by contribution assumption: employee only about $1,193,174 at 4% or $795,449 at 6%; with 50% employer match about $795,449 at 4% or $530,299 at 6%; with 100% employer match about $596,587 at 4% or $397,725 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 435 | $233,556,811 | $11,500,000 | $26,437iApproximate average salary by contribution assumption: employee only about $660,920 at 4% or $440,613 at 6%; with 50% employer match about $440,613 at 4% or $293,742 at 6%; with 100% employer match about $330,460 at 4% or $220,307 at 6%. |
| Intermountain Power Service Corporation Master Trust | - | - | $88,035,187 | - | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 318 | $55,760,271 | $3,782,324 | $11,894iApproximate average salary by contribution assumption: employee only about $297,353 at 4% or $198,235 at 6%; with 50% employer match about $198,235 at 4% or $132,157 at 6%; with 100% employer match about $148,676 at 4% or $99,118 at 6%. |
| Intermountain Power Service Corporation Voluntary Employees' Beneficiary Association Welfare Benefit Plan | - | 0 | $38,327,701 | $3,208,736 | - |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 123 | $35,029,451 | $2,270,160 | $18,457iApproximate average salary by contribution assumption: employee only about $461,415 at 4% or $307,610 at 6%; with 50% employer match about $307,610 at 4% or $205,073 at 6%; with 100% employer match about $230,707 at 4% or $153,805 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 435 | - | - | - |
| 2014 | 5 | 450 | $450,279,261 | $31,664,118 | $70,365iApproximate average salary by contribution assumption: employee only about $1,759,118 at 4% or $1,172,745 at 6%; with 50% employer match about $1,172,745 at 4% or $781,830 at 6%; with 100% employer match about $879,559 at 4% or $586,373 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 448 | $229,287,210 | $13,300,000 | $29,688iApproximate average salary by contribution assumption: employee only about $742,188 at 4% or $494,792 at 6%; with 50% employer match about $494,792 at 4% or $329,861 at 6%; with 100% employer match about $371,094 at 4% or $247,396 at 6%. |
| Intermountain Power Service Corporation Master Trust | - | - | $90,425,223 | - | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 334 | $57,417,875 | $3,573,740 | $10,700iApproximate average salary by contribution assumption: employee only about $267,496 at 4% or $178,330 at 6%; with 50% employer match about $178,330 at 4% or $118,887 at 6%; with 100% employer match about $133,748 at 4% or $89,165 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 450 | $37,467,472 | $12,717,411 | $28,261iApproximate average salary by contribution assumption: employee only about $706,523 at 4% or $471,015 at 6%; with 50% employer match about $471,015 at 4% or $314,010 at 6%; with 100% employer match about $353,261 at 4% or $235,508 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 120 | $35,681,481 | $2,072,967 | $17,275iApproximate average salary by contribution assumption: employee only about $431,868 at 4% or $287,912 at 6%; with 50% employer match about $287,912 at 4% or $191,941 at 6%; with 100% employer match about $215,934 at 4% or $143,956 at 6%. |
| 2013 | 6 | 467 | $380,816,939 | $20,778,736 | $44,494iApproximate average salary by contribution assumption: employee only about $1,112,352 at 4% or $741,568 at 6%; with 50% employer match about $741,568 at 4% or $494,379 at 6%; with 100% employer match about $556,176 at 4% or $370,784 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 462 | $198,696,301 | $15,300,000 | $33,117iApproximate average salary by contribution assumption: employee only about $827,922 at 4% or $551,948 at 6%; with 50% employer match about $551,948 at 4% or $367,965 at 6%; with 100% employer match about $413,961 at 4% or $275,974 at 6%. |
| Intermountain Power Service Corporation Master Trust | - | - | $89,702,295 | - | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 340 | $56,581,245 | $3,418,698 | $10,055iApproximate average salary by contribution assumption: employee only about $251,375 at 4% or $167,583 at 6%; with 50% employer match about $167,583 at 4% or $111,722 at 6%; with 100% employer match about $125,687 at 4% or $83,792 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 125 | $35,837,098 | $2,060,038 | $16,480iApproximate average salary by contribution assumption: employee only about $412,008 at 4% or $274,672 at 6%; with 50% employer match about $274,672 at 4% or $183,114 at 6%; with 100% employer match about $206,004 at 4% or $137,336 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 467 | - | - | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 467 | - | - | - |
| 2012 | 6 | 544 | $325,517,920 | $21,194,074 | $38,960iApproximate average salary by contribution assumption: employee only about $973,992 at 4% or $649,328 at 6%; with 50% employer match about $649,328 at 4% or $432,885 at 6%; with 100% employer match about $486,996 at 4% or $324,664 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 468 | $159,422,672 | $15,754,215 | $33,663iApproximate average salary by contribution assumption: employee only about $841,571 at 4% or $561,048 at 6%; with 50% employer match about $561,048 at 4% or $374,032 at 6%; with 100% employer match about $420,786 at 4% or $280,524 at 6%. |
| Intermountain Power Service Corporation Master Trust | - | - | $81,512,102 | - | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 343 | $51,491,651 | $3,416,633 | $9,961iApproximate average salary by contribution assumption: employee only about $249,026 at 4% or $166,017 at 6%; with 50% employer match about $166,017 at 4% or $110,678 at 6%; with 100% employer match about $124,513 at 4% or $83,009 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 136 | $33,091,495 | $2,023,226 | $14,877iApproximate average salary by contribution assumption: employee only about $371,917 at 4% or $247,944 at 6%; with 50% employer match about $247,944 at 4% or $165,296 at 6%; with 100% employer match about $185,958 at 4% or $123,972 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 544 | - | - | - |
| Intermountain Power Service Corp Group Insurance Plan | - | 544 | - | - | - |
| 2011 | 5 | 557 | $279,662,157 | $21,134,549 | $37,944iApproximate average salary by contribution assumption: employee only about $948,588 at 4% or $632,392 at 6%; with 50% employer match about $632,392 at 4% or $421,595 at 6%; with 100% employer match about $474,294 at 4% or $316,196 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 482 | $129,015,592 | $15,900,000 | $32,988iApproximate average salary by contribution assumption: employee only about $824,689 at 4% or $549,793 at 6%; with 50% employer match about $549,793 at 4% or $366,528 at 6%; with 100% employer match about $412,344 at 4% or $274,896 at 6%. |
| Intermountain Power Service Corporation Master Trust | - | - | $73,746,747 | - | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 339 | $46,406,634 | $3,306,824 | $9,755iApproximate average salary by contribution assumption: employee only about $243,866 at 4% or $162,577 at 6%; with 50% employer match about $162,577 at 4% or $108,385 at 6%; with 100% employer match about $121,933 at 4% or $81,289 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 132 | $30,493,184 | $1,927,725 | $14,604iApproximate average salary by contribution assumption: employee only about $365,099 at 4% or $243,400 at 6%; with 50% employer match about $243,400 at 4% or $162,266 at 6%; with 100% employer match about $182,550 at 4% or $121,700 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 557 | - | - | - |
| 2010 | 5 | 549 | $265,734,912 | $17,382,610 | $31,662iApproximate average salary by contribution assumption: employee only about $791,558 at 4% or $527,705 at 6%; with 50% employer match about $527,705 at 4% or $351,803 at 6%; with 100% employer match about $395,779 at 4% or $263,853 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 477 | $114,521,069 | $12,592,364 | $26,399iApproximate average salary by contribution assumption: employee only about $659,977 at 4% or $439,985 at 6%; with 50% employer match about $439,985 at 4% or $293,323 at 6%; with 100% employer match about $329,989 at 4% or $219,992 at 6%. |
| Intermountain Power Service Corporation Master Trust | - | - | $73,937,501 | - | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 350 | $46,314,899 | $2,988,838 | $8,540iApproximate average salary by contribution assumption: employee only about $213,488 at 4% or $142,326 at 6%; with 50% employer match about $142,326 at 4% or $94,884 at 6%; with 100% employer match about $106,744 at 4% or $71,163 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 136 | $30,961,443 | $1,801,408 | $13,246iApproximate average salary by contribution assumption: employee only about $331,141 at 4% or $220,761 at 6%; with 50% employer match about $220,761 at 4% or $147,174 at 6%; with 100% employer match about $165,571 at 4% or $110,380 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 549 | - | - | - |
| 2009 | 5 | 539 | $222,174,805 | $8,364,751 | $15,519iApproximate average salary by contribution assumption: employee only about $387,975 at 4% or $258,650 at 6%; with 50% employer match about $258,650 at 4% or $172,434 at 6%; with 100% employer match about $193,988 at 4% or $129,325 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 484 | $92,594,111 | $3,700,000 | $7,645iApproximate average salary by contribution assumption: employee only about $191,116 at 4% or $127,410 at 6%; with 50% employer match about $127,410 at 4% or $84,940 at 6%; with 100% employer match about $95,558 at 4% or $63,705 at 6%. |
| Intermountain Power Service Corporation Master Trust | - | - | $62,787,392 | - | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 350 | $39,553,443 | $2,860,855 | $8,174iApproximate average salary by contribution assumption: employee only about $204,347 at 4% or $136,231 at 6%; with 50% employer match about $136,231 at 4% or $90,821 at 6%; with 100% employer match about $102,173 at 4% or $68,116 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 139 | $27,239,859 | $1,803,896 | $12,978iApproximate average salary by contribution assumption: employee only about $324,442 at 4% or $216,294 at 6%; with 50% employer match about $216,294 at 4% or $144,196 at 6%; with 100% employer match about $162,221 at 4% or $108,147 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 539 | - | - | - |
| 2008 | 5 | 538 | $194,818,480 | $14,641,828 | $27,215iApproximate average salary by contribution assumption: employee only about $680,382 at 4% or $453,588 at 6%; with 50% employer match about $453,588 at 4% or $302,392 at 6%; with 100% employer match about $340,191 at 4% or $226,794 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 485 | $76,490,838 | $10,200,000 | $21,031iApproximate average salary by contribution assumption: employee only about $525,773 at 4% or $350,515 at 6%; with 50% employer match about $350,515 at 4% or $233,677 at 6%; with 100% employer match about $262,887 at 4% or $175,258 at 6%. |
| Intermountain Power Service Corporation Master Trust | - | 0 | $57,287,522 | - | - |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 351 | $35,962,438 | $2,810,776 | $8,008iApproximate average salary by contribution assumption: employee only about $200,198 at 4% or $133,465 at 6%; with 50% employer match about $133,465 at 4% or $88,977 at 6%; with 100% employer match about $100,099 at 4% or $66,733 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 134 | $25,077,682 | $1,631,052 | $12,172iApproximate average salary by contribution assumption: employee only about $304,301 at 4% or $202,867 at 6%; with 50% employer match about $202,867 at 4% or $135,245 at 6%; with 100% employer match about $152,150 at 4% or $101,434 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 538 | - | - | - |
| 2007 | 4 | 542 | $158,309,021 | $10,372,945 | $19,138iApproximate average salary by contribution assumption: employee only about $478,457 at 4% or $318,971 at 6%; with 50% employer match about $318,971 at 4% or $212,647 at 6%; with 100% employer match about $239,228 at 4% or $159,486 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 482 | $89,393,443 | $5,900,000 | $12,241iApproximate average salary by contribution assumption: employee only about $306,017 at 4% or $204,011 at 6%; with 50% employer match about $204,011 at 4% or $136,007 at 6%; with 100% employer match about $153,008 at 4% or $102,006 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 348 | $41,364,789 | $2,850,223 | $8,190iApproximate average salary by contribution assumption: employee only about $204,757 at 4% or $136,505 at 6%; with 50% employer match about $136,505 at 4% or $91,003 at 6%; with 100% employer match about $102,379 at 4% or $68,252 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 132 | $27,550,789 | $1,622,722 | $12,293iApproximate average salary by contribution assumption: employee only about $307,334 at 4% or $204,889 at 6%; with 50% employer match about $204,889 at 4% or $136,593 at 6%; with 100% employer match about $153,667 at 4% or $102,445 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 542 | - | - | - |
| 2006 | 4 | 541 | $151,901,150 | $11,526,111 | $21,305iApproximate average salary by contribution assumption: employee only about $532,630 at 4% or $355,087 at 6%; with 50% employer match about $355,087 at 4% or $236,724 at 6%; with 100% employer match about $266,315 at 4% or $177,543 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 482 | $78,053,843 | $7,400,000 | $15,353iApproximate average salary by contribution assumption: employee only about $383,817 at 4% or $255,878 at 6%; with 50% employer match about $255,878 at 4% or $170,586 at 6%; with 100% employer match about $191,909 at 4% or $127,939 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 353 | $44,410,298 | $2,704,725 | $7,662iApproximate average salary by contribution assumption: employee only about $191,553 at 4% or $127,702 at 6%; with 50% employer match about $127,702 at 4% or $85,135 at 6%; with 100% employer match about $95,776 at 4% or $63,851 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 123 | $29,437,009 | $1,421,386 | $11,556iApproximate average salary by contribution assumption: employee only about $288,900 at 4% or $192,600 at 6%; with 50% employer match about $192,600 at 4% or $128,400 at 6%; with 100% employer match about $144,450 at 4% or $96,300 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 541 | - | - | - |
| 2005 | 4 | 540 | $127,393,135 | $16,098,636 | $29,812iApproximate average salary by contribution assumption: employee only about $745,307 at 4% or $496,871 at 6%; with 50% employer match about $496,871 at 4% or $331,248 at 6%; with 100% employer match about $372,654 at 4% or $248,436 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 483 | $64,596,468 | $12,075,000 | $25,000iApproximate average salary by contribution assumption: employee only about $625,000 at 4% or $416,667 at 6%; with 50% employer match about $416,667 at 4% or $277,778 at 6%; with 100% employer match about $312,500 at 4% or $208,333 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 344 | $38,088,747 | $2,606,250 | $7,576iApproximate average salary by contribution assumption: employee only about $189,408 at 4% or $126,272 at 6%; with 50% employer match about $126,272 at 4% or $84,181 at 6%; with 100% employer match about $94,704 at 4% or $63,136 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 125 | $24,707,920 | $1,417,386 | $11,339iApproximate average salary by contribution assumption: employee only about $283,477 at 4% or $188,985 at 6%; with 50% employer match about $188,985 at 4% or $125,990 at 6%; with 100% employer match about $141,739 at 4% or $94,492 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 540 | - | - | - |
| 2004 | 4 | 538 | $106,594,304 | $11,851,994 | $22,030iApproximate average salary by contribution assumption: employee only about $550,743 at 4% or $367,162 at 6%; with 50% employer match about $367,162 at 4% or $244,775 at 6%; with 100% employer match about $275,372 at 4% or $183,581 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 482 | $50,061,633 | $7,900,000 | $16,390iApproximate average salary by contribution assumption: employee only about $409,751 at 4% or $273,167 at 6%; with 50% employer match about $273,167 at 4% or $182,112 at 6%; with 100% employer match about $204,876 at 4% or $136,584 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 346 | $34,255,975 | $2,575,314 | $7,443iApproximate average salary by contribution assumption: employee only about $186,078 at 4% or $124,052 at 6%; with 50% employer match about $124,052 at 4% or $82,701 at 6%; with 100% employer match about $93,039 at 4% or $62,026 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 124 | $22,276,696 | $1,376,680 | $11,102iApproximate average salary by contribution assumption: employee only about $277,556 at 4% or $185,038 at 6%; with 50% employer match about $185,038 at 4% or $123,358 at 6%; with 100% employer match about $138,778 at 4% or $92,519 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 538 | - | - | - |
| 2003 | 4 | 543 | $89,528,583 | $8,466,052 | $15,591iApproximate average salary by contribution assumption: employee only about $389,781 at 4% or $259,854 at 6%; with 50% employer match about $259,854 at 4% or $173,236 at 6%; with 100% employer match about $194,891 at 4% or $129,927 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 499 | $37,870,190 | $4,600,000 | $9,218iApproximate average salary by contribution assumption: employee only about $230,461 at 4% or $153,641 at 6%; with 50% employer match about $153,641 at 4% or $102,427 at 6%; with 100% employer match about $115,230 at 4% or $76,820 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 359 | $31,418,448 | $2,460,541 | $6,854iApproximate average salary by contribution assumption: employee only about $171,347 at 4% or $114,231 at 6%; with 50% employer match about $114,231 at 4% or $76,154 at 6%; with 100% employer match about $85,673 at 4% or $57,116 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 128 | $20,239,945 | $1,405,511 | $10,981iApproximate average salary by contribution assumption: employee only about $274,514 at 4% or $183,009 at 6%; with 50% employer match about $183,009 at 4% or $122,006 at 6%; with 100% employer match about $137,257 at 4% or $91,505 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 543 | - | - | - |
| 2002 | 4 | 490 | $73,167,095 | $6,462,862 | $13,190iApproximate average salary by contribution assumption: employee only about $329,738 at 4% or $219,825 at 6%; with 50% employer match about $219,825 at 4% or $146,550 at 6%; with 100% employer match about $164,869 at 4% or $109,913 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 488 | $28,883,900 | $2,800,000 | $5,738iApproximate average salary by contribution assumption: employee only about $143,443 at 4% or $95,628 at 6%; with 50% employer match about $95,628 at 4% or $63,752 at 6%; with 100% employer match about $71,721 at 4% or $47,814 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 357 | $26,785,728 | $2,443,725 | $6,845iApproximate average salary by contribution assumption: employee only about $171,129 at 4% or $114,086 at 6%; with 50% employer match about $114,086 at 4% or $76,057 at 6%; with 100% employer match about $85,565 at 4% or $57,043 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 132 | $17,497,467 | $1,219,137 | $9,236iApproximate average salary by contribution assumption: employee only about $230,897 at 4% or $153,931 at 6%; with 50% employer match about $153,931 at 4% or $102,621 at 6%; with 100% employer match about $115,449 at 4% or $76,966 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 490 | - | - | - |
| 2001 | 4 | 680 | $71,191,421 | $5,546,937 | $8,157iApproximate average salary by contribution assumption: employee only about $203,932 at 4% or $135,954 at 6%; with 50% employer match about $135,954 at 4% or $90,636 at 6%; with 100% employer match about $101,966 at 4% or $67,977 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 680 | $29,346,354 | $1,900,000 | $2,794iApproximate average salary by contribution assumption: employee only about $69,853 at 4% or $46,569 at 6%; with 50% employer match about $46,569 at 4% or $31,046 at 6%; with 100% employer match about $34,926 at 4% or $23,284 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 365 | $25,231,322 | $2,329,111 | $6,381iApproximate average salary by contribution assumption: employee only about $159,528 at 4% or $106,352 at 6%; with 50% employer match about $106,352 at 4% or $70,901 at 6%; with 100% employer match about $79,764 at 4% or $53,176 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 126 | $16,613,745 | $1,317,826 | $10,459iApproximate average salary by contribution assumption: employee only about $261,473 at 4% or $174,316 at 6%; with 50% employer match about $174,316 at 4% or $116,210 at 6%; with 100% employer match about $130,737 at 4% or $87,158 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 479 | - | - | - |
| 2000 | 4 | 476 | $79,790,728 | $7,895,179 | $16,587iApproximate average salary by contribution assumption: employee only about $414,663 at 4% or $276,442 at 6%; with 50% employer match about $276,442 at 4% or $184,295 at 6%; with 100% employer match about $207,331 at 4% or $138,221 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 476 | $30,003,985 | $3,463,800 | $7,277iApproximate average salary by contribution assumption: employee only about $181,922 at 4% or $121,282 at 6%; with 50% employer match about $121,282 at 4% or $80,854 at 6%; with 100% employer match about $90,961 at 4% or $60,641 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 349 | $29,828,789 | $2,170,376 | $6,219iApproximate average salary by contribution assumption: employee only about $155,471 at 4% or $103,647 at 6%; with 50% employer match about $103,647 at 4% or $69,098 at 6%; with 100% employer match about $77,736 at 4% or $51,824 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 132 | $19,957,954 | $2,261,003 | $17,129iApproximate average salary by contribution assumption: employee only about $428,220 at 4% or $285,480 at 6%; with 50% employer match about $285,480 at 4% or $190,320 at 6%; with 100% employer match about $214,110 at 4% or $142,740 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 469 | - | - | - |
| 1999 | 4 | 472 | $91,948,789 | $6,587,790 | $13,957iApproximate average salary by contribution assumption: employee only about $348,930 at 4% or $232,620 at 6%; with 50% employer match about $232,620 at 4% or $155,080 at 6%; with 100% employer match about $174,465 at 4% or $116,310 at 6%. |
| Savings Plan for Employees of Intermountain Power Service Corporation | - | 348 | $37,832,302 | $3,347,870 | $9,620iApproximate average salary by contribution assumption: employee only about $240,508 at 4% or $160,339 at 6%; with 50% employer match about $160,339 at 4% or $106,892 at 6%; with 100% employer match about $120,254 at 4% or $80,169 at 6%. |
| The Retirement Plan for Employees of Intermountain Power Service Corporation | - | 472 | $29,837,655 | $1,600,000 | $3,390iApproximate average salary by contribution assumption: employee only about $84,746 at 4% or $56,497 at 6%; with 50% employer match about $56,497 at 4% or $37,665 at 6%; with 100% employer match about $42,373 at 4% or $28,249 at 6%. |
| Savings Plan for Salaried Employees of Intermountain Power Service Corporation | - | 122 | $24,278,832 | $1,639,920 | $13,442iApproximate average salary by contribution assumption: employee only about $336,049 at 4% or $224,033 at 6%; with 50% employer match about $224,033 at 4% or $149,355 at 6%; with 100% employer match about $168,025 at 4% or $112,016 at 6%. |
| Intermountain Power Service Corp Group Insurance Plan | - | 472 | - | - | - |