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PeerBasis
Compensation Comparability Determination

Center For Science In Public Participation

Executive Director / CEO

EIN 810512321
MT · NTEE C023
FY ending 2024-12-31
June 9, 2026

This analysis benchmarks the total compensation of David M Chambers, Executive Director / CEO ($100,949) against every comparable organization that fit the selection criteria — 273 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 95th percentile of comparable organizationsabove the 90th percentile — board review recommended

Benchmarked executive: David M Chambers — reported title “President”, a direct title match to the Executive Director / CEO role.

How comparable organizations were selected

273 organizations qualified on sector, size, and geography 273 within the band form the benchmarked peer set.

Distribution of comparable compensation

$465 total compensation of comparable organizations → $216,823 $100,949
$6,91110th
$21,62925th
$42,014Median
$61,85475th
$81,38890th
$100,949This org · 95th
p10$6,911
p25$21,629
p50$42,014
p75$61,854
p90$81,388
$100,949

Comparable organizations

Each figure is Form 990 Part VII columns D + F (reportable pay plus other compensation and benefits; column F may include amounts from related organizations), normalized to MT cost of living (BEA RPP, 2023) and to its filing year (CPI-U); the reported amount is on each linked 990.

OrganizationStateRevenueMatched titleComp
(reported)
Comp
(adjusted)
FY
The Center For Transformation Inc NJ$150,374 Co-executive Director $72,000 $61,398 2023
Badlands National Park SD$149,803 Executive Director $76,635 $78,462 2024
Pelican Lakes Conservation Club MN$149,353 Gamb Mgr/dir $35,375 $31,591 2025
Rosedale Conservancy Inc DC$148,888 Treasurer $5,072 $4,129 2024
Altamaha Riverkeeper Inc GA$148,849 Executive Director $77,920 $72,682 2024
The Pennsylvania Pink Zone PA$148,218 Executive Director $50,085 $45,141 2025
Assateague Coastal Trust Inc MD$148,058 Executive Director $59,615 $51,705 2024
Streets Run Watershed Association PA$153,299 Executive Director $88,000 $81,411 2024
Niobrara Council NE$153,450 Executive Dir. $54,710 $54,589 2024
Werkin Outdoors NC$153,506 Committee Chair $28,037 $26,875 2024
Center For Environmental Law & Policy WA$147,671 Executive Director $89,680 $74,486 2024
Texas Botanical Gardens And Na TX$147,483 Exec Director $26,400 $25,223 2023
Save The Yellowstone Grizzly MT$153,826 Board Treasu $12,000 $12,354 2023
Friends Of Pumpkinvine Nature Trail Inc IN$154,111 Board Member, Administrative Manager $24,000 $23,479 2024
Keep Carroll Beautiful GA$146,544 Executive Dir. $49,920 $47,939 2023
Torrey Botanical Society NY$154,792 President $8,000 $6,706 2024
Cross Vermont Trail Assocation Inc VT$155,037 Executive Director $23,000 $22,110 2023
Play For All Foundation Inc IL$146,122 President $24,656 $22,487 2024
International Society Of Limnology-sil NC$145,957 Editor In Chief-inland Waters $5,000 $4,793 2024
Wentworth Watershed Association NH$145,870 Executive Director $77,861 $66,696 2024
Garden Club Of Ohio Inc OH$155,383 Exec. Secretary/co-treasurer $5,750 $5,817 2023
Source Of Synergy Foundation Inc NY$145,796 President $44,996 $37,720 2024
The Downstream Project VA$145,658 Executive Director $65,076 $58,291 2024
Shamokin Creek Restoration Alliance PA$145,624 Executive Di $19,200 $17,762 2024
Conservation Technology Accelerator Inc CA$156,240 President $13,499 $10,814 2024

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to MT cost of living and 2024 dollars. Click any organization to verify the figure on ProPublica.

Methodology

Comparable organizations were drawn from electronically filed IRS Form 990 returns and matched on sector (NTEE code), budget (a size-adaptive revenue band that tightens as the organization grows), and geography (same-state first, broadening only when too few peers qualify); every organization within the band forms the peer set. To compare fairly across regions and years, peer compensation is normalized to MT cost of living (BEA Regional Price Parities, 2023) and to the subject's filing year (CPI-U). The figure benchmarked is Form 990 Part VII, Section A, columns D + F — reportable pay plus other compensation, benefits, and deferred amounts (column F may include amounts from related organizations) — with the chief executive matched by role. Related-organization amounts (column E) and institutional trustees are excluded. Full methodology: peerbasis.org/methodology.

Sample, role match & sensitivity

Sensitivity — the subject's percentile under alternative compensation definitions:

BasisSubject percentile
Total compensation (D + F), cost-of-living + inflation adjusted — the PeerBasis default95th
Total compensation (D + F), as reported (no adjustments)93rd
Reportable pay only (column D), adjusted92nd
All sources (D + E + F), adjusted92nd

If the percentile moves materially across these definitions, the result is sensitive to methodology choices, and the board should weigh which basis best fits its facts.

Rebuttable presumption of reasonableness · 26 CFR 53.4958-6

Compensation paid by a tax-exempt organization is presumed reasonable — shifting the burden to the IRS — when three requirements are met. This report supplies the comparability data for the second. The board should record the following in its minutes concurrently with its decision:

Draft board minutes — executive compensation

  1. The compensation of the Executive Director / CEO (David M Chambers) was approved in advance by [the Board / Compensation Committee], composed of members with no conflict of interest with respect to the arrangement.
  2. Prior to its determination, the authorized body obtained and relied upon appropriate comparability data, namely the PeerBasis Compensation Comparability Determination dated June 9, 2026, comparing compensation against 273 similarly situated organizations (Same NTEE major group (C), nationwide + budget 0.67–1.5× revenue).
  3. The authorized body determined that total compensation of $100,949 is reasonable (approximately the 95th percentile of comparable organizations) and documented the basis for this determination concurrently, on [date], by a vote of [__ for / __ against].

Sources: IRS Form 990 e-file data (apps.irs.gov); IRS Business Master File (NTEE classification). Every figure traces to an original public filing — click any organization above to verify it on ProPublica. PeerBasis is a service of Prismind Analytics; its methodology is published, was commissioned for independent adversarial review, and discloses its own limitations. This report is comparability data to support a board's good-faith determination under IRC 4958; it is not legal or tax advice. Generated by PeerBasis on June 9, 2026.