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Re-assessment pendingCARLandfill Gas Capture/CombustionUSRegistry: Crediting endedCAR-US-LANDFILL

Sudbury Road Landfill Gas Destruction Project

Developer: City of Walla Walla

CAR-844 ↗

Worked comparison example (English)

#200of 691 in Methane#514of 1789 in United States#319of 1012 in Climate Action Reserve (CAR)#52of 124 in CAR-US-LANDFILL

Score from methodology v2.1 (analysis of 20 Sep 2026). Re-assessment under v2.2 pending.

Crediting ended

The crediting period has ended. Credits already issued exist; no new ones will be issued unless the crediting period is renewed.

Climate Action Reserve: “Completed”

Assessment

CarbonMeld document-based assessment

01020304 Overall 5.4 / 10
Integrity 🔒 Transparency 🔒 Claim Safety 🔒 Documentation 🔒
Dimension scores are locked — the faint arcs are empty tracks, not zero scores.

Scale 0–10 · method weights: integrity 35% · transparency 25% · claim safety 25% · documentation 15%.

Re-assessment pending · v2.1

Scored2026-09-20medium confidenceLatest monitoring period ends: 2022-09-30

evidence: 45/45 registry documents analyzed · 4 red flags

Generated by CarbonMeld Analysis Pipeline · Methodology · Editorial Policy · About the System
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Analysis

The Sudbury Road Landfill Gas Destruction Project is a long-running CAR-registered methane capture project verified by TÜV SÜD America, with additionality confirmed via a combined test. However, the verification record reveals significant data-quality challenges (multiple flow-meter calibration variances, a 10% discount for data gaps, and an EPA ECHO non-compliance notice), a project-specific baseline, and no documented leakage treatment or safeguards. The contradiction on whether gas capture was legally required (stated as required in a 2011 document but not required in the 2024 verification) introduces material uncertainty into the additionality claim.

Red Flags

4 red flags detected — Unlock with Premium

Findings

Risk Indicators

Additionality

🔒

Permanence

🔒

Leakage

🔒

Baseline

🔒

Safeguards

🔒

Double-claim

🔒

Risk indicator details are a Premium feature

Score Breakdown

Score factors per dimension are a Premium feature — Unlock with Premium

Detailed Analysis

The detailed per-dimension analysis is a Premium feature — Unlock with Premium

Evidence

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On this page: the analysis of 20 Sep 2026, marked “Re-assessment pending”. Per-dimension scores, risk indicators, 4 red flags, score factors, detailed analysis, and 45 registry documents (45 analyzed).

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Eligibility & market

What can you claim with this credit?

Four checks buyers ask about, from the registry and the Integrity Council (ICVCM).

  • Airlines (CORSIA)

    No CORSIA label on the registry

    Not usable for airlines' CORSIA obligations.

    Source: registry label

  • Integrity label (ICVCM CCP)

    Methodology approved for some versionsCAR U.S. Landfill Protocol

    The Integrity Council approved some versions of this protocol and not others: check which version the project uses before claiming CCP quality.

    Source: ICVCM assessment

  • Removal or reduction

    Emission reduction or avoidance

    Prevents or reduces emissions — fits contribution claims, not SBTi neutralisation.

    Source: registry label

  • Paris Agreement (Article 6)

    No Article 6 authorization

    No corresponding adjustment: the host country can also count this reduction towards its own target.

    Source: registry label

Information only, from public sources. Claim rules (CORSIA, SBTi, EU rules on green claims) change: check them before making a public claim. Since 27 September 2026, EU consumer rules do not allow “climate neutral” product claims based on offsets.

Registry labels last checked:2026-10-11

Credit Vintages

IssuedRetiredAvailable
2011
11,60611,6060
2012
11,42211,4220
2013
9,0599,0590
2014
2,4532,4530
2015
10,02310,0230
2016
8,8008,8000
2017
12,28412,2840
2018
12,20412,2040
2019
13,19213,1920
2020
16,02416,0240
2021
13,72589012,835
2022
11,810011,810
Total132,602107,95724,645

Retired by

Organisations named as beneficiaries in the registry's public retirement records.

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Profile & governance

Analysis ProvenanceReserve US Landfill Project Protocol
Methodology·Editorial Policy·About the System

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