The quarantine on part of Mount Carmel will be extended, according to the Texas Department of Health.
Dr. David Smith, health commissioner, ordered the extension because of potential disease transmission.
All persons, except those authorized by the health commissioner, are barred from the quarantined area until it has been disinfected.
A fence surrounds the quarantined area.
Inspectors found untreated sewage; standing water — potential breeding sites for flies and mosquitoes; an unsealed water well, shelter for rodents; and other conditions hazardous to the public health.
Violation of the quarantine constitutes a third-degree felony, punishable by two to 10 years in prison or a year in jail and a fine up to $10,000.
The Mount Carmel site was first quarantined in May, about a month after an April 19 fire destroyed the compound of the Branch Davidians and killed more than 80 cult members.