OPINION OF THE COURT
The Secretary of Labor appeals from a July 6, 1990, order of the district court quashing an administrative search warrant for the facility of Internationa] Matex Tank Terminals — Bayonne (“International Ma-tex”) and dismissing her complaint for an order holding International Matex in civil contempt for refusing to honor the search warrant. Because we conclude, contrary to the district court, that the magistrate had probable cause to issue a search warrant for a “wall-to-wall” inspection of the facility, we will reverse and remand for further proceedings. 1
I. FACTS AND PROCEDURE
International Matex employs approximately 120 people in its Bayonne, New Jersey, facility at which it receives, stores, blends, and ships bulk liquid petroleum products. On September 25, 1989, the Occupational Safety and Health Administration (“OSHA”) received a written complaint from Dennis P. Collins, the Mayor of Bayonne, alleging that Internationa] Matex’s facility had been the site of several gas tank leaks between August 1986 and August 1989. The mayor also contended that he had received anonymous complaints about International Matex’s facility, stating that:
(1) Poor housekeeping exists in the Maintenance Shop Building.
(2) Employees are forced to work overtime.
(3) There are no toilet facilities or water in the dock area.
(4) There is no shower in the dock or pier area for purposes of assisting employees in the event of a product spill.
(5) Apparently some management personnel are living on the third floor of the main office.
(6) The west side of pier # 1 and the east side of pier # 4, it is represented are in a total state of disrepair and therefore not safe.
(7) A further representation is that on pier # 7 hoses are strewn all over the place.
(8) It is further alleged that respirators and goggles to be used for product use are not always in evidence.
(9) Additionally, it is represented that the area in back of tank #’s 1701, 1702 and 1704, in the center of the plant area, there possibly exists contamination.
(10) Further representation concerns a spill of # 6 oil at approximately 6:30 a.m. on September 4th, 1989 that was not reported by the company but called in to Police Headquarters by an employee at 1:00 a.m. on Tuesday, September 5th.
(11) A final allegation represents that behind tank # 6206, phenol and other product have been buried underground and covered over.
App. at 25-26.
Inasmuch as certain of these allegations, if true, would constitute serious violations of the Occupational Safety and Health Act of 1970 (“OSH Act” or “the Act”), 29 U.S.C. §§ 651-678, OSHA assigned Compliance Officers Jane Secor and Steve Sawyer to visit the facility.
*617 On January 23, 1990, these officers visited the facility and conferred with Dennis M. Barbarise, International Matex’s Administrative Manager, about the complaint. Barbarise told them that International Ma-tex would cooperate and thereafter the compliance officers reviewed various safety programs and minutes of safety meetings. According to Barbarise, that afternoon, “the Officers expressed an interest in conducting an inspection of the entire facility.” The compliance officers inspected Pier No. 1 and its contiguous areas the following day. They found several minor violations and, in addition, concluded that Pier No. 1 was in “imminent danger” and threatened to obtain an order closing the pier unless repair work commenced right away. Consequently, International Matex developed a plan of short term remedial work to address OSHA’s concerns, to be completed within 14 days.
On January 31,1990, the compliance officers inspected the Maintenance Department and, on February 2, 1990, they returned to inspect the coal pier. According to the affidavit of OSHA’s Area Director, Robert Kulick, the compliance officers discovered the following violations during this consensual inspection:
[N]o Hazard Communications (29 CFR 1910.1200) Program appears to exist at these premises; no confined space procedures appear to have been developed or implemented, although [the compliance officers] have observed and learned that employees are required to enter tanks and other vessels, confined spaces, that contain or contained hazardous substances; employees are required to wear respirators routinely throughout the facility, but no respirator program, required by OSHA standards, appears to have been established or implemented; housekeeping — (29 CFR 1910.106(b))— storage tanks for hazardous materials lack diking, while weeds and combustible are adjacent to the tanks; fire fighting— two fire fighting trucks with signs, “fire rescue” were observed, but evaluation with OSHA standards (29 CFR 1910.156) must still be investigated; after the limited view my [compliance officers] have observed of the electrical hazards, there appear to be electrical hazards present to a large extent everywhere, which could result in electrocution hazards, or fire/explosion hazards.
App. at 22-23.
When the compliance officers returned on February 9, 1990, Barbarise told them that, if OSHA wanted to continue its inspection, it would need a search warrant. At this time, the compliance officers had seen approximately thirty percent of the facility.
On March 12, 1990, the President of Local 8-406 of the Oil, Chemical & Atomic Workers International, Charles Horvath, sent a letter to OSHA repeating allegations of safety violations including electrical hazards on the piers, at tank locations, and at pump areas; the absence of safety showers; ground contamination from leaky pipes and tanks; poor house cleaning throughout the plant; the condition and availability of safety equipment; and the inadequacy of safety programs for fire safety, vessel entry, and respirator training. International Matex contends that this action was in retaliation for its winning a protracted strike dispute six months earlier.
On April 2, 1990, OSHA presented to a federal magistrate an application for a warrant to inspect the entire facility without proper supporting affidavits. The magistrate nonetheless issued the warrant on April 5, 1990. While OSHA attempted to execute the warrant it ultimately returned it unexecuted. OSHA presented a second application to the magistrate on April 27, 1990. Tracking the language of the Act, the application states that:
[t]he desired inspection and investigation is mandated ... as a special inspection in accordance with section 8(f)(1) of the Act....
... In addition, the desired inspection and investigation is part of an inspection and investigation program (described in more detail in the accompanying affidavit) designed to assure compliance with *618 the Act and is authorized by Section 8(a) of the Act.
App. at 7.
The affidavits of Compliance Officer Secor and OSHA Area Director Kulick, and the written complaints of Mayor Collins and Union President Horvath were attached to the application. Secor’s affidavit stated that, during the consensual inspection, “[u]sing accident/illness records, I calculated the firm’s LWDI (lost workday incident rate) to be 15.4, which is more than three and one-half times above the national rate of 4.2.” She also stated that she found “numerous instances of conditions which may constitute violations of the general OSHA standards.” Additionally, her affidavit stated that a January 1987 limited inspection after a fire revealed one serious and one other violation.
The magistrate issued a warrant for as many as four OSHA inspectors and for up to 60 days:
to enter without delay the [premises] during regular working hours or at other reasonable times, and to inspect and investigate in a reasonable manner and to a reasonable extent (including but not limited to the taking of photographs and samples, which may be done by attaching monitoring devices to employees, and to question privately any employer, owner, operator, agent or employees of the establishment on the premises during working hours), the workplace or environment where work is performed by employees of the employer, and all pertinent conditions including structures, machines, apparatus, devices, equipment, materials, and all other things therein (including records required by the Act and regulations and standards, but excluding all employee medical records) ...
App. at 37 (emphasis in original).
When International Matex refused to permit the inspection, the Secretary filed this suit in the United States District Court for the District of New Jersey seeking an order holding it in contempt for its refusal to honor the warrant. International Matex moved to quash the warrant and to dismiss the complaint, alleging that the Secretary had failed to demonstrate that probable cause supported the warrant.
In ruling on International Matex’s motion, the district court, in an opinion dated July 6, 1990, first questioned whether the warrant was issued pursuant to section 8(a) of the Act, which grants the Secretary authority to conduct reasonable inspections, or section 8(f), which requires that the Secretary inspect upon reasonable belief that violations alleged in an employee complaint exist. The court concluded that the warrant was issued pursuant to both sections. Secretary of Labor v. International Ma-tex, No. 90-1940, slip op. at 8-9 (D.N.J. July 6, 1990) (discussing 29 U.S.C. §§ 657(a), (f)). It relied heavily on the language of the application for the warrant that “the desired inspection and investigation is part of an inspection and investigation program ... designed to assure compliance with the Act and is authorized by Section 8(a) of the Act.” The court then reviewed Secor’s supporting affidavit which set forth the circumstances of the complaint by Mayor Collins and her personal observations during the voluntary inspection of the facility in January and February 1990. The court also acknowledged the complaint OSHA received from Union President Horvath as material supporting the warrant application. Id.
Having concluded that OSHA based its application on both sections 8(a) and 8(f), the court reviewed various precedents discussing section 8(a) inspections, referring to three district court opinions concerned with whether probable cause existed for the warrants involved, an issue dependent on whether the Secretary established that the inspections were pursuant to a program that was not arbitrary:
Marshall v. Weyerhaeuser Co.,
(1) the request was for a general inspection and that no higher priority inspections were pending; (2) the plant had never been inspected; (3) the plant was on the ‘Worst First’ list; (4) it was ranked 20th out of 34 on the local list; and (5) OSHA had inspected the preceding companies on that list.
International Matex,
slip op. at 10-11 (citing
Reynolds,
The court concluded that the warrant application here did not meet the requirements outlined in Weyerhaeuser and Reynolds for section 8(a) warrants to show that this inspection was not arbitrary or discriminatory.
The court rejected the Secretary’s contention that evidence from the voluntary inspection, that is the very high lost workday incident rate (“LWDI”) at the plant, could support a finding of probable cause because “the presentation of that evidence to the Magistrate does not cure the previously noted deficiencies in the § 8(a) application.” The district court rejected the Secretary’s argument that evidence of the high LWDI could support the issuance of an administrative warrant beyond the scope of the employee complaints and distinguished this court’s opinion in
Dole v. Trinity Industries, Inc.,
Turning to section 8(f), the court also rejected OSHA’s contention that the employee complaints of the mayor and union president provided probable cause to support the administrative warrant. Relying on In Re Establishment Inspection of Northwest Airlines, Inc., the court determined that it need not reach the section 8(f) issue in light of its determination that the section 8(a) application was insufficient to support probable cause. International Matex, slip op. at 14. The court stated that “as Northwest Airlines instructs, a § 8(f)(1) inspection also requires a detailed ‘program’ of inspection that must be identified in the warrant application.” Id. The court held that the entire warrant was defective and that OSHA’s argument in the alternative that, if section 8(a) did not apply then section 8(f)(1) applied, was an attempt to circumvent the Supreme Court’s standards. Id.
The court dismissed OSHA’s complaint requesting an order holding International Matex in civil contempt for refusing to honor the warrant, as it concluded that the warrant was not supported by probable cause and International Matex had attempted in good faith to resolve the dispute. Id. at 16-17.
On this appeal, the Secretary argues that the district court erroneously assumed that all section 8(a) inspections require that OSHA show an administrative plan containing specific neutral criteria. OSHA contends that it has broad authority to conduct inspections under section 8(a) and is not restricted to “programmed” inspections made pursuant to a plan, but may also establish probable cause by specific evidence of violations including, but not limited to, employee complaints. International Matex argues that the district court properly determined that the Secretary failed to show that it had been selected for inspection by a neutral administrative plan. It continues that the Secretary’s Field Operations Manual provides that the order of priority for inspections is first, Imminent Danger Investigations; second, Fatality/Catastrophe Investigations; third, Investigation of Complaints/Referrals; and fourth, Programmed Inspections, and that the Secretary failed to follow this priority system in selecting International Matex for inspection.
The district court’s determination that the Secretary’s application for a warrant failed to establish probable cause is
*620
subject to plenary review.
In Re Establishment Inspection of Midwest Instruments Co.,
II. DISCUSSION
A. OSHA Inspections
Section 8(a) of the OSH Act, codified at 29 U.S.C. § 657(a), authorizes the Secretary to conduct searches under certain circumstances:
[T]he Secretary, upon presenting the appropriate credentials to the owner, operator, or agent in charge, is authorized—
(1) to enter without delay and at reasonable times any factory, plant, establishment, construction site, or other area, workplace or environment where work is performed by an employee of an employer; and
(2) to inspect and investigate during regular working hours and at other reasonable times, and within reasonable limits and in a reasonable manner, any such place of employment and all pertinent conditions, structures, machines, apparatus, devices, equipment, and materials therein, and to question privately any such employer, owner, operator, agent or employee.
Inspections are also mandated under section 8(f) of the OSH Act, codified at 29 U.S.C. § 657(f), which provides:
(1) Any employees or representative of employees who believe that a violation of a safety or health standard exists that threatens physical harm, or that an imminent danger exists, may request an inspection by giving notice to the Secretary or his authorized representative of such violation or dan-ger____ If upon receipt of such notification the Secretary determines there are reasonable grounds to believe that such violation or danger exists, he shall make a special inspection in accordance with the provisions of this section as soon as practicable, to determine if such violation or danger exists ____
OSHA is limited in its authority to inspect under these statutory provisions by the Fourth Amendment. In
Camara v. Municipal Court,
must exist if reasonable legislative or administrative standards for conducting an area inspection are satisfied with respect to a particular dwelling. Such standards, which will vary with the municipal program being enforced, may be based upon the passage of time, the nature of the building (e.g., a multi-family apartment house), or the condition of the entire area, but they will not necessarily depend upon specific knowledge of the condition of the particular dwelling.
Id.
at 538,
The Supreme Court later confirmed that this relaxed standard for establishing probable cause for an administrative search warrant applied to OSHA inspections. In
Marshall v. Barlow’s, Inc.,
While the Act must, of course, be understood with the foregoing constitutional standards in mind, we agree with the Secretary that nothing in it or any Supreme Court decision confines section 8(a) inspections to programmed inspections pursuant to an administrative plan. The language of section 8(a) suggests a broad grant of authority to the Secretary to conduct reasonable inspections in that it permits entry to any establishment “or other area” to inspect “any such place of employment and all pertinent conditions.” 29 U.S.C. § 657(a). The statute is notably devoid of any requirement that inspections be made pursuant to an administrative plan or scheme; Congress could have indicated as much if it intended this restriction. In fact, the legislative history supports the interpretation that section 8(a) is a broad grant of authority to conduct reasonable inspections, in contrast to section 8(f)(1), which is not a grant of authority but rather imposes a requirement that the Secretary inspect under certain circumstances.
See
S.Rep. No. 1282, 91st Cong., 2d Sess. (1970)
reprinted in
1970 U.S.Code Cong. & Admin.News 5177, 5187-89 (government personnel given right of entry to carry out effective safety and health program and section 8(f) entitles employees to special inspection as soon as practicable upon complaint that health or safety violation exists).
See also Marshall v. Horn Seed Co., Inc.,
Additionally, the Secretary has interpreted section 8(a) as a broad grant of authority subject only to the limitation that inspections be “within reasonable limits” and made “during regular working hours and at other reasonable times” and this interpretation is entitled to deference, if reasonable.
Secretary of Labor v. Aluminum Coil Anodizing Corp.,
1 O.S.H.Cas.(BNA) 1508, 1509 (Review Comm’n 1974). While this interpretation is limited by the Supreme Court’s later decision in
Barlow’s,
nothing in
Barlow’s
or
Camara
supports the district court’s conclusion that the
only
means for the Secretary to establish probable cause for an administrative warrant to search under section 8(a) is by an administrative plan containing specific neutral criteria. Rather, both cases indicate that this means of establishing probable cause is available to the Secretary in addition to the conventional means of establishing probable cause, that is, by specific evidence of a violation.
Barlow’s,
This interpretation is widely accepted.
See In Re Establishment Inspection of Cerro Copper Products Co.,
We conclude, therefore, that the district court erred in its determination that the Secretary was required to show an administrative plan pursuant to which International Matex was selected for inspection under section 8(a); in fact, the Secretary may establish probable cause to inspect by specific evidence of violations at the facility. Having misinterpreted the relevant precedents, the district court erroneously relied on cases which could not be persuasive here, as in those cases there was no specific evidence of violations.
See Northwest Airlines,
The district court compounded its error when it determined that because no probable cause existed for a section 8(a) inspec
*623
tion the entire warrant was defective, and it could avoid the effect of the specific complaints under section 8(f). The court relied on
In Re Establishment Inspection of Northwest Airlines, Inc.,
Notably, a later opinion from the Court of Appeals for the Seventh Circuit did not suggest that there was a programmed inspection requirement for applications based on employee complaints.
See Burkart Randall,
B. Administrative Probable Cause based on Specific Evidence of Violations
Inasmuch as we have determined that the Secretary could establish probable cause to inspect by specific evidence of violations at International Matex’s facility without showing that a neutral administrative plan existed, we turn to the appropriate standard for establishing probable cause for this type of evidence. While the standard for probable cause based on programmed inspections is well established,
see Barlow’s,
[i]n the context of investigatory fire searches, which are not programmatic but are responsive to individual events, a more particularized inquiry may be necessary. The number of prior entries, the scope of the search, the time of day when it is proposed to be made, the lapse of time since the fire, the continued use of the building, and the owner’s efforts to secure it against intruders might all be relevant factors.
Id.
at 507,
Michigan v. Tyler
has been interpreted to establish that the relaxed administrative standard for probable cause applies both to warrant applications based on specific evi
*624
dence and those based on inspections pursuant to a plan and we agree.
Horn Seed,
Setting forth the requirements for probable cause, the Court of Appeals for the Tenth Circuit in Horn Seed stated that for warrant applications grounded on specific evidence of violations,
there must be some plausible basis for believing that a violation is likely to be found. The facts offered must be sufficient to warrant further investigation or testing.
By necessity, such a determination requires the magistrate to consider the reliability of the information tendered in support of the application____ Although a ‘substantial basis’ is not required to credit the information’s reliability, there must be some basis for believing that a complaint was actually made, that the complainant was sincere in his assertion that a violation exists, and he had some plausible basis for entering a com-plaint____ The warrant application must, of course, inform the magistrate of the substance of the complaint so that he can determine whether the alleged conditions, if true, constitute a violation.
Id. at 102-03 (emphasis in original) (citations omitted).
That court continued that, for an application based on an employee complaint, the affidavit should set forth, inter alia, who at OSHA received the complaint, the source of the complaint, the underlying facts surrounding the complaint, the steps taken to verify the complaint, and any personal observations by the affiant of the premises and past violations. Id. at 103.
Likewise, the Court of Appeals for the Eleventh Circuit set forth the standard for probable cause based on specific evidence in West Point-Pepperell:
the evidence of a specific violation required to establish administrative probable cause, while less than that needed to show a probability of a violation, must at least show that the proposed inspection is based upon a reasonable belief that a violation has been or is being committed and not upon a desire to harass the target of the inspection. This requirement is met by a showing of specific evidence sufficient to support a reasonable suspicion of a violation.
Considering the information that OSHA presented to the magistrate here, we conclude that probable cause clearly existed under this relaxed administrative standard. The magistrate had before him the written complaints of the mayor and the union president. 2 The mayor’s complaint contained specific allegations of violations at the facility based on anonymous complaints that he had received and these allegations were repeated in the union president’s letter.
Under
Horn Seed,
we must determine whether the magistrate had “some basis for believing that a complaint was actually made, that the complainant was sincere in his assertion that a violation exists, and he had some plausible basis for entering a complaint.”
Horn Seed,
We, however, need not determine whether these complaints, standing alone, would support a finding of probable cause because the Secretary presented other evi *625 dence of violations at International Matex through the affidavits of OSHA employees. Compliance Officer Secor, in her affidavit supporting the application for a warrant, stated “[bjetween January 23 and February 2, I have found numerous instances of conditions which may constitute violations of the general industry OSHA standards found at 29 CFR 1910.” According to Ku-lick’s affidavit, the compliance officers discovered during the consensual inspection that “there appear to be electrical hazards present to a large extent everywhere, which could result in electrocution hazards, or fire/explosion hazards.” Additionally, the compliance officers determined that International Matex had failed to implement required safety measures such as a hazard communications program, confined space procedures, and a respirator program, even though employees were required to wear respirators throughout the facility. They also observed that some storage tanks for hazardous materials were inadequate.
This information is reliable because it is based on the first hand knowledge of Officer Secor, an experienced inspector who spent several days inspecting the facility.
See Plum Creek Lumber Co. v. Hutton,
Additionally, OSHA presented the magistrate with Secor’s determination that International Matex’s LWDI rate was three and a half times the national rate. Secor based her calculations on employee accident/illness records reviewed during the consensual inspection and, therefore, the result is reliable. Such a wide deviation from the national rate provides a “plausible basis for believing that a violation is
likely
to be found.”
Horn Seed,
We have no trouble concluding that these materials established probable cause under the relaxed administrative standard for OSHA inspections. The evidence of specific violations, particularly the observations of Compliance Officer Secor that electrical hazards permeated the facility, showed that the proposed inspection was “based upon a reasonable belief that a violation has been or is being committed.”
West Point-Pepperell,
C. Appropriate Scope of the Inspection
The magistrate’s broad warrant for as many as four OSHA inspectors “to inspect and investigate in a reasonable manner and to a reasonable extent ... the workplace or environment where work is performed by employees of the employer, and all pertinent conditions including structures, machines, apparatus, devices, equipment, materials, and all other things therein (including records required by the Act and regulations and standards, but excluding all employee medical records)” clearly authorized a wall-to-wall inspection of International Matex’s facility. For warrant applications based on employee complaints, a wall-to-wall search in some cases may not be justified for “the scope of the inspection must bear an appropriate relationship to the violations alleged in the complaint.”
Marshall v. North American Car Co.,
Where a programmed inspection authorizes the search, however, this court has held that these restrictions are not applicable and OSHA may conduct a wall-to-wall inspection of the facility. In
Pennsylvania Steel Foundry & Machine Co. v. Secretary of Labor,
Because the search warrant here was not predicated solely on employee complaints nor on a programmed inspection, neither North American Car or Pennsylvania Steel is controlling and it is unclear whether the “appropriate relationship” test of North American Car for inspections predicated on employee complaints under section 8(f)(1) applies to section 8(a) searches as well. We find it unnecessary, however, to determine whether this restriction extends to warrants based on specific evidence of discrete and isolated violations under section 8(a) because, here, specific evidence provides that violations permeated the entire facility; thus, a wall-to-wall inspection was reasonable. Kulick in his affidavit indicated that “there appear to be electrical hazards present to a large extent everywhere, which could result in electrocution hazards, or fire/explosion hazards,” and Horvath in his letter said there was poor house cleaning throughout the plant. While the mayor’s and union president’s complaints alone might have led to a restricted inspection, these complaints were not made in isolation and, when considered with the personal observations of the compliance officers, no such restriction was necessary.
Although we note that our previous decision in
Dole v. Trinity Industries
tacitly approves of the practice, we likewise find it unnecessary to determine whether a high LWDI rate alone can support a broader inspection than indicated by an employee complaint because the magistrate was presented with other evidence here.
See
D. Civil Contempt
Finally, we consider the district court’s denial of the Secretary’s petition for an order holding International Matex in civil contempt for its refusal to comply with the search warrant. On appeal, the denial of a civil contempt citation is reviewed under the abuse of discretion standard.
Littlejohn v. BIC Corp.,
*627 III. CONCLUSION
The district court erred when it determined that the only means by which the Secretary could establish probable cause to support an inspection warrant was by a programmed inspection pursuant to a neutral administrative plan. The court compounded this error when it concluded that even employee complaints must be investigated pursuant to a plan. . Because the magistrate had ample specific evidence, including the first-hand observations of the compliance officer, to show “a plausible basis for believing that [violations were] likely to be found,”
see Horn Seed,
Notes
. The district court had subject matter jurisdiction pursuant to 28 U.S.C. §§ 1337, 1345. This court has appellate jurisdiction pursuant to 28 U.S.C. § 1291. The Secretary timely filed a notice of appeal on September 4, 1990.
. The Secretary's Field Operations Manual provides that the mayor is a suitable representative of employees for purposes of filing a formal complaint.
. Of course, the motivation for the charges would not necessarily undermine their validity.
