| PARLABEL Sort ascending | NAME | CAS NUMBER |
|---|---|---|
| RU-105 | Ruthenium-105 | 14331-95-4 |
| RU-103 | Ruthenium-103 | 13968-53-1 |
| RU | Ruthenium | 7440-18-8 |
| RROC28C40 | Residual Range Organics (C28-C40) | NA |
| RROC25C36 | Residual Range Organics (C25-C36) | NA |
| RROAROMATIC | Residual Range Organics, Aromatic | NA |
| RROALIPHATIC | Residual Range Organics, Aliphatic | NA |
| RRO | Residual Range Organics | NA |
| ROTENONE | Rotenone | 83-79-4 |
| RONNEL | Ronnel | 299-84-3 |
| RN-222 | Radon-222 | 14859-67-7 |
| RN-219 | Radon-219 | 14835-02-0 |
| RN | Radon | 10043-92-2 |
| RIVDIRECT | River Direction ( PARVAL - Upstream = 1; Downstream = -1) | NA |
| RH | Rhodium | 7440-16-6 |
| RESMETHRIN | Resmethrin | 10453-86-8 |
| RESIST | Resistivity | NA |
| REDOX | Oxidation-Reduction Potential | NA |
| RECN | Reactive Cyanide | NA |
| RECEFFRAT | Receiving Water to Effluent Flow Ratio | NA |
| RE-188 | Rhenium-188 | 14378-26-8 |
| RDX | Hexahydro-1,3,5-trinitro-1,3,5-triazine | 121-82-4 |
| RB | Rubidium | 7440-17-7 |
| RAINFALL | Rainfall | NA |
| RAINBOWTR | Oncorhynchus mykiss (Rainbow Trout) | NA |
| RADISO | Radioactive Isotopes | NA |
| RADIOACT | Radioactivity | NA |
| RA226228 | Radium-226 and Radium-228 | NA |
| RA-228 | Radium-228 | 15262-20-1 |
| RA-226 | Radium-226 | 13982-63-3 |
| RA-225 | Radium-225 | 13981-53-8 |
| RA-224 | Radium-224 | 13233-32-4 |
| RA-223 | Radium-223 | 15623-45-7 |
| RA | Radium | 7440-14-4 |
| R143A | 1,1,1-Trifluoroethane | 420-46-2 |
| QUPHOS | Quinalphos | 13593-03-8 |
| QUINO | Quinoline | 91-22-5 |
| QUINICA | Quinic acid | 77-95-2 |
| QUINCLORAC | Quinclorac | 84087-01-4 |
| PYRUVICACID | Pyruvic Acid | 127-17-3 |
| PYRIMETHANIL | Pyrimethanil | 53112-28-0 |
| PYRDN | Pyridine | 110-86-1 |
| PYRD10 | Pyrene-d10 | 1718-52-1 |
| PYR | Pyrene | 129-00-0 |
| PYDRIN | Pydrin | 51630-58-1 |
| PVOL | Purge Volume | NA |
| PU239240 | Plutonium-239 and Plutonium-240 | NA |
| PU-244 | Plutonium-244 | 14119-34-7 |
| PU-242 | Plutonium-242 | 13982-10-0 |
| PU-241 | Plutonium-241 | 14119-32-5 |
| PU-240 | Plutonium-240 | 14119-33-6 |
| PU-239 | Plutonium-239 | 15117-48-3 |
| PU-238 | Plutonium-238 | 13981-16-3 |
| PTSA | 1,3,6,8-Pyrenetetrasulfonic acid | 6528-53-6 |
| PTOLUIDINE | p-Toluidine | 106-49-0 |
| PTHIAZINE | Phenothiazine | 92-84-2 |
| PTCBPH22346 | 2,2,3,4,6-Pentachlorobiphenyl | 68194-05-8 |
| PT | Platinum | 7440-06-4 |
| PSULFOCARB | Prosulfocarb | 52888-80-9 |
| PROXIDE | Propylene oxide | 75-56-9 |
| PRORAZ | Prochloraz | 67747-09-5 |
| PROPYL | n-Propylamine | 107-10-8 |
| PROPYCIL | Propylthiouracil | 51-52-5 |
| PROPRAN | Propranolol | 525-66-6 |
| PROPOXUR | Propoxur | 114-26-1 |
| PROPMERCAP | Propyl mercaptan | 107-03-9 |
| PROPIONICACD | Propionic acid | 79-09-4 |
| PROPICON | Propiconazole | 60207-90-1 |
| PROPHAM | Propham | 122-42-9 |
| PROPGLY | Propylene glycol | 57-55-6 |
| PROPGITE | Propargite | 2312-35-8 |
| PROPENE | Propylene | 115-07-1 |
| PROPAZINE | Propazine | 139-40-2 |
| PROPANOL2 | 2-Propanol | 67-63-0 |
| PROPANIL | Propanil | 709-98-8 |
| PROPANAL | Propanal | 123-38-6 |
| PROPACHLOR | Propachlor | 1918-16-7 |
| PROP2MERCAP | 2-Propyl mercaptan | 75-33-2 |
| PRONAMD | Pronamide | 23950-58-5 |
| PROMETRYN | Prometryn | 7287-19-6 |
| PROMETON | Prometon | 1610-18-0 |
| PROH | n-Propanol | 71-23-8 |
| PROGESTERONE | Progesterone | 57-83-0 |
| PROFLURALIN | Profluralin | 26399-36-0 |
| PROFENOFOS | Profenofos | 41198-08-7 |
| PROCYMIDONE | Procymidone | 32809-16-8 |
| PRIMIDONE | Primidone | 125-33-7 |
| PRIMICID | Pirimphos-ethyl | 23505-41-1 |
| PRAZIQUANTEL | Praziquantel | 55268-74-1 |
| PR2BRCL | 2-Bromo-1-chloropropane | 3017-95-6 |
| PR | Praseodymium | 7440-10-0 |
| PPHTHALICA | p-Phthalic acid | 100-21-0 |
| POURPT | Pour Point | NA |
| PORTHO | Phosphorus, Total Orthophosphate (as P) | NA |
| POROSITY | Porosity | NA |
| PORG | Phosphorus, Total Organic (as P) | NA |
| POM | Particulate Organic Matter | NA |
| PO4TOT | Total Phosphate (as PO4) | NA |
| PO4RS | Phosphorus, Reactive soluble | NA |
| PO4P | Phosphate, Total ( as P) | NA |