25 Pa. Code § 289.557 – Departmental notice and remedial action.

The operator shall immediately notify the Department and describe remedial steps to be taken whenever:

(1) Operation of the treatment facility in accordance with the approved plan cannot prevent violation of the terms of its permits, The Clean Streams Law or regulations thereunder.
(2) The facility is generating a quality or quantity of leachate that exceeds the design capacity of the onsite pretreatment or treatment system.
(3) The contractual agreement for leachate treatment by an offsite treatment system is breached or expired.
(4) The quality or quantity of waste being disposed at the site changes from that in the permit.

Cross References

This section cited in 25 Pa. Code § 287.114 (relating to interim operational requirements for unpermitted processing or disposal facilities); 25 Pa. Code § 287.116 (relating to interim operational requirements); 25 Pa. Code § 289.513 (relating to leachate treatment plan); 25 Pa. Code § 289.514 (relating to modification of leachate treatment plan); and 25 Pa. Code § 289.551 (relating to scope).

APPENDIX ATABLE IMINIMUM LINER DESIGN STANDARDS

		Minimum Field	Liner Density
		Thickness (Units	(Tests as
Liner Material	Function	as Specified)	Specified)	Remarks
Geosynthetics	Primary or Secondary Liner	30 mil	N/A	1. A greater thickness may be required depending upon the recommendations of the manufacturer. HDPE liners shall be at least 60 mil.
Geosynthetics	Cap	30 mil	N/A	1. A greater thickness may be required depending upon the recommendations of the manufacturer.
Natural & Remolded Clay	Secondary Liner, Cap, Composite Component	2 feet 2 feet 1 foot	›=90%* ›=90%* ›=90%*	1. Minimum of 30% fines by weight less than 0.074 mm particle size (#200 sieve). 2. Plasticity Index greater than or equal to 10. 3. No coarse fragments greater than 3/4 inch in diameter.
Sodium bentonite & Bentonite-like materials/soil mixtures	Secondary Liner, Cap, Composite Component	2 feet 2 feet 1 foot	›=90%* ›=90%* ›=90%*	1. Minimum of 8% powdered sodium bentonite or manufacturer’s recommendations, whichever is greater. 2. No coarse fragments greater than 3/4 inch in diameter. 3. No organic matter. 4. Coarse fragment content (those materials greater than 4.76 mm. in diameter) shall not exceed 10% by weight.
Geosynthetic clay liner (GCL)	Composite Component	N/A	N/A	1. Minimum of 3/4 pound of powdered or granular sodium bentonite per square foot.

* Percentage of maximum when using Standard Proctor method of design (Pa. PTM No. 106, Method B).

Cross References

This table is cited in 25 Pa. Code § 289.242 (relating to cover); 25 Pa. Code § 289.434 (relating to secondary liner); and 25 Pa. Code § 289.436 (relating to primary liner).

TABLE IIMINIMUM LINER DESIGN STANDARDS Minimum FieldLiner Density Thickness (Units(Tests as Liner MaterialFunctionas Specified)Specified)Remarks GeosyntheticsLiner Cap 30 milN/A 1. A greater thickness may be required depending upon the recommendations of the manufacturer. HDPE liners shall be at least 60 mil. Natural & Remolded Clay Cap,Composite Component 2 feet 1 foot ›=90%* ›=90%* 1. Minimum of 30% fines by weight less than 0.074 mm particle size (#200 sieve). 2. Plasticity Index greater than or equal to 10. 3. No coarse fragments greater than 3/4 inch in diameter. Sodium bentonite & Bentonite-like materials/soil mixtures Cap, Composite Component 2 feet 1 foot ›=90%* ›=90%* 1. Minimum of 8% powdered sodium bentonite or manufacturer’s recommendations, whichever is greater. 2. No coarse fragments greater than 3/4 inch in diameter. 3. No organic matter. 4. Coarse fragment content (those materials greater than 4.76 mm. in diameter), shall not exceed 10% by weight. Geosynthetic Clay Liner (GCL) Composite Component N/AN/A 1. Minimum of 3/4 pound of powdered or granular sodium bentonite per square foot.

* Percentage of maximum when using Standard Proctor method of design (Pa. PTM No. 106, Method B).

Cross References

This table cited in 25 Pa. Code § 289.535 (relating to liner).