| 
										
											| Parameter | Sample Size/Container | Preservative | Holding Time |  | 
							
								| 
										
											| Ammonia | 1 Liter, Plastic | H2SO4, Cool | 28 days |  | 
							
								| 
										
											| BOD/CBOD | 1 Liter, Plastic | Cool | 48 hours |  | 
							
								| 
										
											| BTEX-Water | 40ml, EPA Vial | HCI, Cool | 14 days |  | 
							
								| 
										
											| BTEX-Solid | 4oz., Glass/Teflon Lid | Cool | 14 days |  | 
							
								| 
										
											| COD | 100ml, Plastic | H2SO4, Cool | 28 days |  | 
							
								| 
										
											| Chloride-Fluoride-Sulfate | 100ml, Plastic | o | 28 days |  | 
							
								| 
										
											| Chloride-Solid | 4oz., Plastic | o | 28 days |  | 
							
								| 
										
											| Hardness | 100ml, Plastic | HNO3 | 6 months |  | 
							
								| 
										
											| Metals | 1 Liter, Plastic | HNO3, Cool | 6 months |  | 
							
								| 
										
											| Nitrate, Nitrite-Nitrogen | 100ml, Plastic | Cool | 48 hours |  | 
							
								| 
										
											| Oil & Grease | 1 Liter, Plastic | H2SO4, Cool | 14 days |  | 
							
								| 
										
											| Pesticides | 1 Liter, Glass | Cool | 7 days ext./40 |  | 
							
								| 
										
											| pH | 100ml, Plastic | Cool | Immediate |  | 
							
								| 
										
											| Sulfide | 100ml, Plastic | Zn Acetate, NaOh | 7 days |  | 
							
								| 
										
											| Solids | 500ml, Plastic | Cool | 7 days |  | 
							
								| 
										
											| TKN | 1 Liter, Plastic | H2SO4, Cool | 28 days |  | 
							
								| 
										
											| Total Coliforms | 128ml, Sterile Plastic | Sodium Thiosulfate | 48 hours |  | 
							
								| 
										
											| TRPH - Water | 1 Liter, Glass | HCI, Cool | 14 days |  | 
							
								| 
										
											| TRPH - Soil | 4oz., Glass | Cool | 14 days |  | 
							
								| 
										
											| Volatile Organics | 240ml EPA Vial | HCI, Cool | 14 days |  |