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PeerBasis
Compensation Comparability Determination

Mills River Partnership Inc

Executive Director / CEO

EIN 452913039
NC · NTEE C32
FY ending 2025-06-30
June 9, 2026

This analysis benchmarks the total compensation of Maria Wise, Executive Director / CEO ($84,253) against every comparable organization that fit the selection criteria — 92 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 67th percentile of comparable organizationswithin the typical range

Benchmarked executive: Maria Wise — reported title “EXECUTIVE DI”, a direct title match to the Executive Director / CEO role.

How comparable organizations were selected

92 organizations qualified on sector, size, and geography 92 within the band form the benchmarked peer set.

Distribution of comparable compensation

$6,005 total compensation of comparable organizations → $151,842 $84,253
$43,02410th
$57,41725th
$75,640Median
$90,31975th
$107,20290th
$84,253This org · 67th
p10$43,024
p25$57,417
p50$75,640
p75$90,319
p90$107,202
$84,253

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 NC 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
Plant A Million Corals Foundation Inc FL$406,319 President & Ceo $82,214 $76,725 2024
Friends Of The Mad River VT$406,162 Executive Director $68,571 $68,563 2024
Higgins Lake Foundation MI$410,917 Executive Di $7,989 $8,191 2024
Multicultural Education For Resource CA$413,304 Exec. Director $94,250 $83,237 2023
Haw River Assembly Inc NC$397,564 Executive Di $71,611 $73,506 2024
Save The River Inc NY$419,357 Exec. Direc. $47,807 $42,915 2024
River Rangers International Inc OH$420,310 President/ce $75,000 $78,913 2024
Doan Brook Watershed Partnership OH$422,092 Executive Di $51,606 $54,298 2024
Ohio River Foundation OH$425,997 Executive Director $135,609 $142,685 2024
The Center For Water Security And DC$426,670 Vice-chair And Executive Director $138,333 $124,153 2023
Crystal Springs Foundation Inc FL$427,082 Vp/executive Director $86,565 $83,172 2023
Southeastern Arizona Bird Observatory Inc AZ$428,340 President $23,750 $22,690 2024
Dolores River Boating Advocates CO$434,872 Executive Director $90,444 $86,153 2024
Khm International HI$435,307 Exec Director $74,675 $66,417 2024
Iowa Drainage District Association IA$370,156 Executive Dir. $119,911 $127,068 2025
Great River Passage Conservancy MN$444,881 Executive Director $154,688 $151,842 2024
National Watershed Coalition OK$446,831 Executive Director $132,000 $140,670 2025
Little River Wetlands Project Inc IN$364,403 2023 Exec Di $71,023 $76,602 2023
Coachella Valley Irrigated Lands Coalition Inc CA$361,310 Executive Director $13,839 $11,871 2024
The Pomperaug River Watershed CT$360,277 Executive Di $67,628 $62,991 2024
Watershed Alliance Of WA$360,058 Executive Director $88,609 $78,809 2024
Colorado Watershed Assembly CO$453,242 Executive Director $72,000 $70,610 2023
Middle Colorado Watershed Council CO$454,149 Executive Director $93,526 $91,721 2023
Luckiamute Watershed Council OR$458,859 Exec Directo $28,333 $26,139 2024
Savannah Riverkeeper Inc GA$461,387 Executive Di $53,880 $53,819 2024

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to NC cost of living and 2025 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 NC 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 default67th
Total compensation (D + F), as reported (no adjustments)62nd
Reportable pay only (column D), adjusted67th
All sources (D + E + F), adjusted65th

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 (Maria Wise) 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 92 similarly situated organizations (Same NTEE sector (C32), nationwide + budget 0.67–1.5× revenue).
  3. The authorized body determined that total compensation of $84,253 is reasonable (approximately the 67th 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.