This is a consolidated appeal of the denial of three defendants’ motions to modify their sentences pursuant to 18 U.S.C. § 3582(c)(2). All three defendants were indicted, along with others, on multiple charges in a drug trafficking ring and entered into plea agreements that included appellate waivers. The government maintains we should dismiss the appeals because the waiver bars our review. Because we conclude that § 3582(c)(2) motions do not fall within the waiver’s scope, we hold that the waivers do not bar the defendants’ appeals of the denials of their § 3582(c)(2) motions. However, because we conclude that the district court did not err in denying the motions, we affirm.
I. BACKGROUND
Clint Woods pled guilty to conspiracy with intent to distribute crack cocaine in violation of 21 U.S.C. § 846 on May 24, 2000. On December 8, 2000, the court sentenced him to 235 months’ imprisonment and three years’ supervised release. Steve Bennett pled guilty to conspiracy with intent to distribute crack cocaine in violation of § 846 on December 17, 2001. On April 26, 2002, the court sentenced Bennett to 210 months’ imprisonment and five years’ supervised release.
The government moved to reduce Woods’s and Bennett’s terms of imprisonment, and the court granted the motion on September 3, 2003, reducing each of their sentences to 168 months. Woods and Bennett had already received other sentence reductions, and additional counts against them had been dismissed in exchange for their cooperation with the government.
David McDonald pled guilty to conspiracy with intent to distribute crack cocaine *533 in violation of § 846 on August 3, 2000. On December 19, 2000, the court sentenced McDonald to 235 months’ imprisonment and five years’ supervised release. Upon the government’s motion, the court reduced his sentence to 188 months’ incarceration in June 2003.
The presentence report (“PSR”) for each defendant concluded that each was responsible for distributing more than 1.5 kilograms of cocaine base or more than 150 kilograms of cocaine powder. The court adopted the PSR report and made no other specific findings as to the drug quantities attributable to each defendant. Each PSR explained that from 1992 to 1998, the entire conspiracy distributed about 345 kilograms of crack and about 230 kilograms of powder, but it did not attribute a specific amount to Woods, Bennett, or McDonald other than more than 1.5 kilograms of crack.
The United States Sentencing Commission amended the guidelines effective on November 1, 2007, lowering the penalties for most crack cocaine offenses by two levels to ameliorate the 100 to 1 drug-quantity ratio between crack cocaine and powder cocaine as found in § 2D1.1 of the United States Sentencing Guidelines. See U.S.S.G. app. C, amend. 706 (2007). The Commission made some technical changes to § 2D1.1 with Amendment 711. U.S.S.G. app. C, amend. 711 (2007). The Commission made the amendments retroactive to cases sentenced before the amendments’ enactments. Because the court sentenced Woods, Bennett, and McDonald before enactment of the amendments, they each filed § 3582(c)(2) motions.
The district court denied Woods’s motion because it concluded that Amendments 706 and 711 to the guidelines do not apply retroactively to a defendant who possessed with intent to distribute other drugs in addition to crack. The district court denied Bennett’s and McDonald’s motions because it concluded that each were accountable for more than 4.5 kilograms of cocaine base, and the amendments did not change the base offense level when quantities that great are involved. Woods, Bennett, and McDonald appeal the denial of their § 3582(c)(2) motions. 1
II. ANALYSIS
A. The defendants did not waive their right to appeal the denial of their § 3582(c)(2) motions. 2
Before potentially reaching the merits of the defendants’ arguments that the court erred in denying their § 3582(c)(2) motions, we must determine whether to dismiss these appeals because each defendant entered into a plea agreement containing the following waiver:
I further expressly waive my right to appeal my sentence on any ground, including any appeal right conferred by Title 18, United States Code 3742. I also agree not to contest my sentence or the manner in which it was determined in any post-conviction proceeding, including, but not limited to a proceeding under Title 28, United States Code § 2255.
The defendants maintain that a § 3582(c)(2) 3 motion is not an attack on *534 the original sentence, but rather a request to modify an originally correct sentence based on amendments to the sentencing guidelines. Therefore, they maintain the plea did not bar their motion or this appeal. The government contends we must dismiss the appeal because the waiver bars any manner of appellate review. At oral argument, the government acknowledged that it did not assert waiver in the district court in response to any of the defendants’ § 3582(c)(2) motions. The government explained that the United States Attorney’s Office for the Northern District of Indiana had a policy allowing prosecutors to forego enforcement of sentence-challenging waivers in § 3582(c)(2) motions before the district court, but that it asserts waiver if a defendant attempts to appeal the district court’s decision.
We review the enforceability of a waiver agreement de novo.
Jones v. United States,
To determine if a defendant knew and understood the plea agreement, we must examine the language of the plea agreement itself and also look to the plea colloquy between the defendant and the judge.
Woolley,
The waiver at issue does not include an express provision barring the filing of § 3582(c)(2) motions, as some plea agreements do.
See, e.g., Stearns,
Two of our sister circuits have addressed appellate right waivers following the denial of a § 3582(c)(2) motion, and both have concluded that the waivers at issue did not bar the appeals. In
United States v. Chavez-Salais,
the Tenth Circuit interpreted a broadly-worded waiver and concluded that appealing the denial of a § 3582(c)(2) motion did not fall within the scope of the waiver.
In
United States v. Leniear,
the Ninth Circuit also rejected the government’s argument that the defendant’s appellate waiver precluded the court’s review of the § 3582(c)(2) motion denial.
Like the courts in Chavez-Salais and Leniear, we do not believe the waiver here *536 bars the defendants’ appeals. Neither the language of the waiver itself nor that of the colloquies demonstrate that the defendants contemplated waiving their right to appeal the denials of the sentence-reduction motions based on subsequent changes to the guidelines. 6
We do not believe that § 3582(c)(2) motions contest the initially imposed sentence as precluded by the second sentence of the waiver. Rather, § 3582(c)(2) motions bring to the court’s attention changes in the guidelines that allow for a sentence reduction. As the court said in
ChavezSalais,
“[W]e do not believe that motions under 18 U.S.C. § 3582(c)(2) are clearly understood to fall within a prohibition on ‘any collateral attack.’ Defendant’s motion under § 3582(c)(2) does not so much challenge the original sentence as it seeks a modification of that sentence based upon an amendment to the Guidelines.”
We also conclude that this appeal is not barred by the waiver’s first sentence, which gives up each defendant’s right to “appeal my sentence on any ground,” including any right under 18 U.S.C. § 3742. The defendants have not appealed their originally imposed sentence, rather, they appeal the denials of their sentence-reduction motions because they believe the district court incorrectly concluded that they were ineligible for a reduction.
See Leniear,
We also reject the government’s contention that even if the text of the waiver is not clear, the judge in each plea colloquy sufficiently explained that the defendants could not appeal the rulings. Although each judge ensured that the defendants entered into the plea agreements voluntarily and knowingly, they never made clear that the waiver precluded the defendants from pursuing § 3582(c)(2) motions if there was a subsequent amendment to
*537
the sentencing guidelines. In fact, neither judge mentioned § 3582(c)(2) proceedings at all. Although each explained that his sentencing decision was final and that the defendant could not complain about his decision to the appellate court, the judge was referring to the sentence being handed down at the sentencing hearing. When each judge explicitly described what rights the waiver encompassed, they focused exclusively on § 2255 motions and direct appeals. Based on the colloquies, it seems all present had the same conventional understanding of the term “post-conviction proceeding” as the
Chavez-Salais
court had of the term “collateral attack.”
See Chavez-Salais,
B. A conviction for multiple drug types does not make Woods ineligible for a sentence reduction.
Woods challenges the district court’s order denying his § 3582(c)(2) motion because it concluded that Amendment 706 is not retroactive for cases involving multiple drug types like Woods’s which involved both crack and powder cocaine. We review the district court’s application of sentencing guidelines de novo.
United States v. Samuels,
As the government concedes, Woods is correct that he is now eligible for a reduction despite having been convicted of possessing multiple drug types. The court’s order reveals that, in accordance with the amendments in effect at the time, it considered only Amendments 706 and 711, which retroactively reduced by two offense levels certain crack offenses and provided instruction on how to calculate the base offense level for offenses involving crack and another drug type.
See
U.S.S.G. Supp. to app. C, amends. 706, 711 (2007). The methodology for calculating the offense level for other drug types created some bizarre results.
See, e.g., United States v. Molina,
Nevertheless, the government maintains we should find this error harmless because Woods was responsible for more than 4.5. kilograms of crack and therefore is ineligible for a reduction. Because this argument applies to all three defendants, we resolve this issue below.
C. The district court did not err in finding the defendants ineligible for a reduction.
Each defendant’s PSR explained that members of the conspiracy distributed *538 approximately 345 kilograms of crack and approximately 230 kilograms of powder cocaine between 1992 and 1998. During the length of the conspiracy, kilograms of drugs were transported from Chicago to Michigan and Indiana almost every week. Each PSR also stated that the amount attributable to Woods, Bennett, and McDonald individually exceeded 1.5 kilograms of crack. The court adopted each PSR, specifically finding that each of the defendants was responsible for amounts in excess of 1.5 kilograms of crack. 7
In the denials of Bennett’s and McDonald’s § 3582(c)(2) motions, the district court concluded that the amendments did not benefit either defendant because each was responsible for more than 4.5 kilograms of crack cocaine and the base offense level does not change when such large quantities are involved. The defendants argue that this was a different factual finding than what was found by the original sentencing court, which, they contend, is not allowed in a § 3582(c)(2) proceeding.
The district court was correct that if the defendants were responsible for more than 4.5 kilograms of crack cocaine, the amendments do not benefit them.
See United States v. Forman,
We agree with the defendants that district courts in § 3582(c)(2) proceedings cannot make findings inconsistent with that of the original sentencing court.
See United States v. Armstrong,
Here, however, in denying the defendants’ sentence-reduction motions, the district court did not make findings inconsistent with those of the original sentencing court. Rather, the district court examined the record as a whole, considered the defendants’ motions, the government’s responses, and the addenda to the PSRs explaining the conspiracy’s distribution of hundreds of kilograms over the years before making a finding that the defendants were responsible for amounts in excess of 4.5 kilograms.
8
See United States v. Atkinson,
And there was ample evidence on the record to find each defendant responsible for more than 4.5 kilograms. The district court’s sentencing memorandum for Woods discussed the hundreds of kilograms attributable to the conspiracy and stated that he did not challenge those figures. Bennett’s PSR, which the district court adopted without objection, explained that he was involved in the conspiracy from 1992 to at least 1998. McDonald’s PSR, also adopted without objection, described how he worked as a runner, delivering crack and money from 1992 to 1998. The conspiracy was clearly responsible for distributing amounts in excess of 4.5 kilograms over the years, and based on the record as a whole, the district court reasonably found that the defendants were responsible for more than 4.5 kilograms of crack each and, therefore, that they were ineligible for a reduction under Amendment 706.
III. CONCLUSION
Therefore, we Affirm the district court’s denial of the defendants’ § 3582(c)(2) motions.
Notes
. Chief Judge Miller presided over each defendant's § 3582(c)(2) proceedings, as well as McDonald’s sentencing and change of plea hearing. Judge Sharp presided over Woods's and Bennett's sentencing and change of plea hearings.
. While this opinion was at the printer, our court decided
United States v. Monroe,
No. 08-2945,
. 18 U.S.C. § 3582(c)(2) provides:
*534 The court may not modify a term of imprisonment once it has been imposed except that ... in the case of a defendant who has been sentenced to a term of imprisonment based on a sentencing range that has subsequently been lowered by the Sentencing Commission pursuant to 28 U.S.C. § 994(o), upon motion of the defendant or the Director of the Bureau of Prisons, or on its own motion, the court may reduce the term of imprisonment, after considering the factors set forth in section 3553(a) to the extent that they are applicable, if such a reduction is consistent with applicable policy statements issued by the Sentencing Commission.
. The waiver in Chavez-Salais stated:
Defendant knowingly waives the right to appeal any sentence within the guideline range applicable to the statute of conviction as determined by the Court after resolution of any objections by either party to the presentence report to be prepared in this case, and defendant specifically agrees not to appeal the determination of the Court in resolving any contested sentencing factor. In other words, Defendant waives the right to appeal the sentence imposed in this case except to the extent, if any, that the Court may depart upwards from the applicable sentencing guideline range as determined by the Court. The defendant also waives his right to challenge his sentence or the manner in which it was determined in any collateral attack, including but not limited to, a motion brought under Title 28, United States Code, Section 2255, except to the extent that the court may depart upwards from the applicable sentencing guideline range.
. The waiver in Leniear states in part:
The defendant also understands and agrees that as consideration for the government's commitments under this plea agreement, and if the court accepts this plea agreement and imposes a sentence no greater than the maximum statutory penalties available for the offense of conviction, including any forfeiture under this plea agreement, he will knowingly and voluntarily waive his right, contained in 18 U.S.C. § 3742, to appeal the sentence — including all conditions of supervised release and forfeiture-imposed.
Leniear,
. We also note that a district court, on its own motion, may modify a defendant’s sentence under § 3582(c)(2) even if a defendant agreed not to pursue any avenues of relief.
See
§ 3582(c)(2) ("upon motion of the defendant or the Director of the Bureau of Prisons, or on its own motion, the court may reduce the term of imprisonment”);
see also United States v. Taylor,
. The government maintains that the court also found McDonald responsible for 150 kilograms of powder cocaine, making him ineligible for a reduction because this amount would place him at Level 38. We reject the government’s argument on this point because the PSR states: “this defendant's criminal activity was distribution of more than 1.5 kilograms of cocaine base or more than 150 kilograms of cocaine powder.’’ (emphasis added). We do not believe this is a finding of 150 kilograms of powder cocaine, but rather a restatement of what qualifies for an offense Level 38 in the guidelines.
. McDonald also submitted a reply brief contending that the district court never found he was responsible for more than 4.5 kilograms.
