Post by Admin on Nov 23, 2013 15:40:03 GMT -5
Here is the relevant section of the Farabee report:
C.
Wastewater Facilities
1. Collection System
There is no comprehensive wastewater system map available for S-bag Lake Resort, but the original construction plans are available, and show the original three phases of sewer system construction. Those maps were reviewed and compared with televising records.
At various times from 2001 to 2007, American In-line Inspection, Inc. used specialized equipment to televise and repair gravity sewers. In addition to numerous video tapes made by cameras pulled through the sewers, there is a written log of each day’s televising work. These logs list each section of gravity sewer televised, by street and manhole number. An attempt was made to compare those logs with the sewers shown in the construction plans,which are in three phases dated 1972, 1973, and 1974. A detailed comparison was not possible because a different system of manhole numbering was used – the manhole numbers in the televising logs clearly do not match the manhole numbers on the construction plans.
The total sewer length was measured by scaling from the construction plan overall maps; these show a total of about 23,000 feet of gravity sewers. The total sewer length from the televising logs totals about 25,000 feet. It appears that all the gravity sewers were televised and repaired during that period of time.
SLohA files also included paper logs of televising 178 sewer laterals (pipes from individual lots) in 2006 and 2007. It appears that the problems documented in those logs were corrected.
It is reported by the SLohA staff that leaking sewers and laterals were repaired and that there are no significant sewer problems remaining. A quick review of the daily flows reported at the wastewater treatment plant corroborates that report; there are no obviously high wastewater flows during rainy weather, as would be expected with significant sewer leaks, known as infiltration.
Direct rainwater entry into the sewers from the surface (known as inflow) may be present. This can happen from missing cleanout plugs, connection of rain gutters to the sewers, or breaks in sH allow service laterals. The Florida Rural Water Association recently conducted smoke testing to identify such problems, but the report on that testing is not available.
This review of the available information shows no reason to expect that repairs will be needed soon to sewers or sewer laterals under the pavement of streets. The smoke testing report, when it becomes available, may show the need for repairs to laterals outside the pavement or at manhole covers, but smoke testing is unlikely to reveal a problem that requires pavement removal to correct, and there is no other reason to expect that such problems exist.
Engineering Recommendation:
11. Authorize engineering services to prepare an application for renewal of the existing wastewater permit from FDEP. (Schedule: Spring 2014. Conceptual Cost Estimate: $3,000 to $5,000.)
C.
Wastewater Facilities
1. Collection System
There is no comprehensive wastewater system map available for S-bag Lake Resort, but the original construction plans are available, and show the original three phases of sewer system construction. Those maps were reviewed and compared with televising records.
At various times from 2001 to 2007, American In-line Inspection, Inc. used specialized equipment to televise and repair gravity sewers. In addition to numerous video tapes made by cameras pulled through the sewers, there is a written log of each day’s televising work. These logs list each section of gravity sewer televised, by street and manhole number. An attempt was made to compare those logs with the sewers shown in the construction plans,which are in three phases dated 1972, 1973, and 1974. A detailed comparison was not possible because a different system of manhole numbering was used – the manhole numbers in the televising logs clearly do not match the manhole numbers on the construction plans.
The total sewer length was measured by scaling from the construction plan overall maps; these show a total of about 23,000 feet of gravity sewers. The total sewer length from the televising logs totals about 25,000 feet. It appears that all the gravity sewers were televised and repaired during that period of time.
SLohA files also included paper logs of televising 178 sewer laterals (pipes from individual lots) in 2006 and 2007. It appears that the problems documented in those logs were corrected.
It is reported by the SLohA staff that leaking sewers and laterals were repaired and that there are no significant sewer problems remaining. A quick review of the daily flows reported at the wastewater treatment plant corroborates that report; there are no obviously high wastewater flows during rainy weather, as would be expected with significant sewer leaks, known as infiltration.
Direct rainwater entry into the sewers from the surface (known as inflow) may be present. This can happen from missing cleanout plugs, connection of rain gutters to the sewers, or breaks in sH allow service laterals. The Florida Rural Water Association recently conducted smoke testing to identify such problems, but the report on that testing is not available.
This review of the available information shows no reason to expect that repairs will be needed soon to sewers or sewer laterals under the pavement of streets. The smoke testing report, when it becomes available, may show the need for repairs to laterals outside the pavement or at manhole covers, but smoke testing is unlikely to reveal a problem that requires pavement removal to correct, and there is no other reason to expect that such problems exist.
Engineering Recommendation:
11. Authorize engineering services to prepare an application for renewal of the existing wastewater permit from FDEP. (Schedule: Spring 2014. Conceptual Cost Estimate: $3,000 to $5,000.)