ITEM |
DESCRIPTION |
RETENTION PERIOD |
(a) |
Boiler and gas machine logs, including supporting data |
3 years |
(b) |
Gas generation and output logs with supporting data |
Ditto |
(c) |
Temperature and atmospheric pressure logs |
Ditto |
(d) |
Coal, coke and oil reports |
Ditto |
(e) |
Residual reports |
Ditto |
(f) |
Recording instrument charts such as pressure (static and/or differential), temperature, specific gravity heating value, etc. |
1 year, except where the basic chart information is transferred to another record, the charts need only be retained six months provided the record containing the basic data is retained one year. |
(g) |
Test of heating value at stations and outlying points |
6 years |
(h) |
Records of gas produced, gas purchased, gas sent out and holder stock |
Ditto |
(i) |
Analysis of gas produced and purchased including BTU and sulphur content |
Ditto |
(j) |
Records of general inspection and operating tests |
3 years |
(k) |
Well records, including cleaning, bailing, shooting, etc., records; rock pressure; open flow; production, gas analysts' reports, etc. |
1 year after field or relevant production area abandoned. |
(l) |
Gasoline production |
6 years. |
(m) |
Gas production by counties |
Destroy at option. |
(n) |
Gas measuring records |
1 year, except where the basic chart information is transferred to another record, the charts need only be retained six months provided the record containing the basic data is retained one year. |
(o) |
Tool record |
For life of equipment. |
(p) |
Royalty record |
6 years. |
(q) |
Records of meter tests |
Until superseding test, but not less than two years. |
(r) |
Meter history records |
For life of meter. |