IDEM R2 Soil Published Levels - Indiana Pesticides and PCBs
IDEM R2 soil direct-contact published levels for pesticides and PCBs. 219 chemicals with residential and commercial/industrial values from WASTE-0046-R2.
Overview
These are Indiana’s Published Level Table 1 soil direct-contact standards for pesticides and polychlorinated biphenyls (PCBs), from the IDEM Risk-based Closure Guide (WASTE-0046-R2, “the R2”), effective March 28, 2025. IDEM renamed these values from “Screening Levels” to “Published Levels” in the 2022 R2 update.
Risk basis: Indiana’s published levels are derived at a 1E-05 cancer risk (1 in 100,000) and a hazard quotient (HQ) of 1.0. This is 10 times less conservative than EPA’s default 1E-06 risk level. Most legacy pesticides (DDT, dieldrin, chlordane, heptachlor) and PCBs are carcinogens, so Indiana’s residential values are approximately 10 times higher than default EPA Regional Screening Levels for these compounds.
Qualifier key:
- C = Carcinogenic - value is cancer risk-based
- N = Noncarcinogenic - value is hazard quotient-based
- S = Soil saturation cap
- L = 100,000 mg/kg cap
- D = Detection limit-based
- M = Based on the MCL
Blank cells indicate no published level for that chemical and pathway - not a level of zero.
Soil Direct-Contact Published Levels - Pesticides and PCBs
| Chemical | CAS Number | Residential (mg/kg) | Q | Commercial/Industrial (mg/kg) | Q |
|---|---|---|---|---|---|
| Acephate | 30560-19-1 | 30 | N | 300 | N |
| Acetochlor | 34256-82-1 | 2,000 | N | 20,000 | N |
| Alachlor | 15972-60-8 | 100 | C | 400 | C |
| Aldicarb | 116-06-3 | 90 | N | 800 | N |
| Aldicarb Sulfone | 1646-88-4 | 90 | N | 800 | N |
| Aldrin | 309-00-2 | 0.5 | C | 2 | C |
| Ametryn | 834-12-8 | 800 | N | 7,000 | N |
| Amitraz | 33089-61-1 | 200 | N | 2,000 | N |
| Asulam | 3337-71-1 | 30,000 | N | 100,000 | L |
| Atrazine | 1912-24-9 | 30 | C | 100 | C |
| Azinphos-methyl | 86-50-0 | 300 | N | 3,000 | N |
| Benfluralin | 1861-40-1 | 500 | N | 6,000 | N |
| Benomyl | 17804-35-2 | 4,000 | N | 40,000 | N |
| Bensulfuron-methyl | 83055-99-6 | 20,000 | N | 100,000 | L |
| Bentazon | 25057-89-0 | 3,000 | N | 30,000 | N |
| Bifenox | 42576-02-3 | 800 | N | 7,000 | N |
| Biphenthrin | 82657-04-3 | 1,000 | N | 10,000 | N |
| Bromophos | 2104-96-3 | 500 | N | 6,000 | N |
| Bromoxynil | 1689-84-5 | 70 | C | 200 | C |
| Bromoxynil Octanoate | 1689-99-2 | 90 | C | 300 | C |
| Butylate | 2008-41-5 | 5,000 | N | 60,000 | N |
| Butylated hydroxyanisole | 25013-16-5 | 40,000 | C | 100,000 | L |
| Butylated hydroxytoluene | 128-37-0 | 2,000 | C | 6,000 | C |
| Cacodylic Acid | 75-60-5 | 2,000 | N | 20,000 | N |
| Captafol | 2425-06-1 | 50 | C | 200 | C |
| Captan | 133-06-2 | 3,000 | C | 10,000 | C |
| Carbaryl | 63-25-2 | 9,000 | N | 80,000 | N |
| Carbofuran | 1563-66-2 | 400 | N | 4,000 | N |
| Carbosulfan | 55285-14-8 | 900 | N | 8,000 | N |
| Carboxin | 5234-68-4 | 9,000 | N | 80,000 | N |
| Chloramben | 133-90-4 | 1,000 | N | 10,000 | N |
| Chloranil | 118-75-2 | 20 | C | 60 | C |
| Chlordane (alpha) | 5103-71-9 | 50 | N | 500 | N |
| Chlordane (gamma) | 5103-74-2 | 50 | N | 500 | N |
| Chlordane (technical mixture) | 12789-03-6 | 20 | C | 80 | C |
| Chlordecone (Kepone) | 143-50-0 | 0.8 | C | 2 | C |
| Chlorfenvinphos | 470-90-6 | 60 | N | 600 | N |
| Chlorimuron, Ethyl- | 90982-32-4 | 8,000 | N | 70,000 | N |
| Chlorobenzilate | 510-15-6 | 70 | C | 200 | C |
| Chlorothalonil | 1897-45-6 | 400 | C | 1,000 | C |
| Chlorozotocin | 54749-90-5 | 0.03 | C | 0.1 | C |
| Chlorpropham | 101-21-3 | 400 | N | 4,000 | N |
| Chlorpyrifos | 2921-88-2 | 90 | N | 800 | N |
| Chlorpyrifos Methyl | 5598-13-0 | 900 | N | 8,000 | N |
| Chlorsulfuron | 64902-72-3 | 4,000 | N | 40,000 | N |
| Chlorthiophos | 60238-56-4 | 70 | N | 700 | N |
| Clofentezine | 74115-24-5 | 1,000 | N | 10,000 | N |
| Cyanazine | 21725-46-2 | 9 | C | 30 | C |
| Cyfluthrin | 68359-37-5 | 2,000 | N | 20,000 | N |
| Cyromazine | 66215-27-8 | 40,000 | N | 100,000 | L |
| Dalapon | 75-99-0 | 3,000 | N | 30,000 | N |
| Daminozide | 1596-84-5 | 400 | C | 1,000 | C |
| Demeton | 8065-48-3 | 4 | N | 30 | N |
| Diallate | 2303-16-4 | 100 | C | 400 | C |
| Diazinon | 333-41-5 | 60 | N | 600 | N |
| Dibromo-3-chloropropane, 1,2- | 96-12-8 | 0.07 | C | 0.6 | C |
| Dicamba | 1918-00-9 | 3,000 | N | 30,000 | N |
| Dichlorobenzophenone, 4,4'- | 90-98-2 | 800 | N | 7,000 | N |
| Dichlorodiphenyldichloroethylene, p,p'- (DDE) | 72-55-9 | 30 | C | 90 | C |
| Dichlorodiphenyltrichloroethane, p,p'- (DDT) | 50-29-3 | 30 | C | 90 | C |
| Dichlorophenoxy Acetic Acid, 2,4- | 94-75-7 | 1,000 | N | 10,000 | N |
| Dichlorvos | 62-73-7 | 30 | C | 80 | C |
| Dicrotophos | 141-66-2 | 3 | N | 30 | N |
| Dieldrin | 60-57-1 | 0.5 | C | 1 | C |
| Difenzoquat | 43222-48-6 | 7,000 | N | 70,000 | N |
| Diflubenzuron | 35367-38-5 | 2,000 | N | 20,000 | N |
| Dimethipin | 55290-64-7 | 2,000 | N | 20,000 | N |
| Dimethoate | 60-51-5 | 200 | N | 2,000 | N |
| Dinoseb | 88-85-7 | 90 | N | 800 | N |
| Diphenamid | 957-51-7 | 3,000 | N | 30,000 | N |
| Diquat | 2764-72-9 | 200 | N | 2,000 | N |
| Disulfoton | 298-04-4 | 4 | N | 30 | N |
| Dithiane, 1,4- | 505-29-3 | 1,000 | N | 10,000 | N |
| Diuron | 330-54-1 | 200 | N | 2,000 | N |
| Dodine | 2439-10-3 | 2,000 | N | 20,000 | N |
| Endosulfan | 115-29-7 | 700 | N | 7,000 | N |
| Endothall | 145-73-3 | 2,000 | N | 20,000 | N |
| Endrin | 72-20-8 | 30 | N | 300 | N |
| EPTC | 759-94-4 | 5,000 | N | 60,000 | N |
| Ethephon | 16672-87-0 | 400 | N | 4,000 | N |
| Ethion | 563-12-2 | 40 | N | 400 | N |
| Fenamiphos | 22224-92-6 | 20 | N | 200 | N |
| Fenpropathrin | 39515-41-8 | 2,000 | N | 20,000 | N |
| Fenvalerate | 51630-58-1 | 2,000 | N | 20,000 | N |
| Fluometuron | 2164-17-2 | 1,000 | N | 10,000 | N |
| Fluridone | 59756-60-4 | 7,000 | N | 70,000 | N |
| Flurprimidol | 56425-91-3 | 4,000 | N | 30,000 | N |
| Flusilazole | 85509-19-9 | 200 | N | 2,000 | N |
| Flutolanil | 66332-96-5 | 40,000 | N | 100,000 | L |
| Fluvalinate | 69409-94-5 | 900 | N | 8,000 | N |
| Folpet | 133-07-3 | 8,000 | N | 70,000 | N |
| Fomesafen | 72178-02-0 | 900 | N | 8,000 | N |
| Fonofos | 944-22-9 | 200 | N | 2,000 | N |
| Fosetyl-AL | 39148-24-8 | 100,000 | L | 100,000 | L |
| Furazolidone | 67-45-8 | 2 | C | 6 | C |
| Furium | 531-82-8 | 5 | C | 20 | C |
| Furmecyclox | 60568-05-0 | 300 | C | 800 | C |
| Glyphosate | 1071-83-6 | 9,000 | N | 80,000 | N |
| Heptachlor | 76-44-8 | 2 | C | 6 | C |
| Heptachlor Epoxide | 1024-57-3 | 1 | C | 3 | C |
| Hexachlorocyclohexane, Gamma- (Lindane) | 58-89-9 | 0.08 | N | 0.8 | N |
| Hexazinone | 51235-04-2 | 3,000 | N | 30,000 | N |
| Hexythiazox | 78587-05-0 | 2,000 | N | 20,000 | N |
| Imazalil | 35554-44-0 | 100 | C | 400 | C |
| Imazaquin | 81335-37-7 | 20,000 | N | 100,000 | L |
| Imazethapyr | 81335-77-5 | 100,000 | L | 100,000 | L |
| Iprodione | 36734-19-7 | 4,000 | N | 30,000 | N |
| Isopropalin | 33820-53-0 | 2,000 | N | 20,000 | N |
| Isoxaben | 82558-50-7 | 4,000 | N | 40,000 | N |
| Lactofen | 77501-63-4 | 700 | N | 7,000 | N |
| Linuron | 330-55-2 | 700 | N | 6,000 | N |
| Malathion | 121-75-5 | 2,000 | N | 20,000 | N |
| Mancozeb | 8018-01-7 | 3,000 | N | 30,000 | N |
| Maneb | 12427-38-2 | 400 | N | 4,000 | N |
| MCPA | 94-74-6 | 40 | N | 400 | N |
| MCPB | 94-81-5 | 4,000 | N | 40,000 | N |
| MCPP | 93-65-2 | 90 | N | 800 | N |
| Mephosfolan | 950-10-7 | 8 | N | 70 | N |
| Merphos | 150-50-5 | 3 | N | 40 | N |
| Metalaxyl | 57837-19-1 | 5,000 | N | 50,000 | N |
| Methamidophos | 10265-92-6 | 4 | N | 40 | N |
| Methidathion | 950-37-8 | 100 | N | 1,000 | N |
| Methomyl | 16752-77-5 | 2,000 | N | 20,000 | N |
| Methoxychlor | 72-43-5 | 400 | N | 4,000 | N |
| Methyl Parathion | 298-00-0 | 20 | N | 200 | N |
| Metolachlor | 51218-45-2 | 10,000 | N | 100,000 | L |
| Metribuzin | 21087-64-9 | 2,000 | N | 20,000 | N |
| Metsulfuron-methyl | 74223-64-6 | 20,000 | N | 100,000 | L |
| Mirex | 2385-85-5 | 0.5 | C | 2 | C |
| Molinate | 2212-67-1 | 200 | N | 2,000 | N |
| Myclobutanil | 88671-89-0 | 2,000 | N | 20,000 | N |
| Naled | 300-76-5 | 200 | N | 2,000 | N |
| Napropamide | 15299-99-7 | 10,000 | N | 100,000 | N |
| Nitrofurazone | 59-87-0 | 6 | C | 20 | C |
| Norflurazon | 27314-13-2 | 100 | N | 1,000 | N |
| Oryzalin | 19044-88-3 | 1,000 | C | 3,000 | C |
| Oxadiazon | 19666-30-9 | 400 | N | 4,000 | N |
| Oxamyl | 23135-22-0 | 2,000 | N | 20,000 | N |
| Oxyfluorfen | 42874-03-3 | 100 | C | 300 | C |
| Paclobutrazol | 76738-62-0 | 1,000 | N | 10,000 | N |
| Paraquat Dichloride | 1910-42-5 | 400 | N | 4,000 | N |
| Parathion | 56-38-2 | 500 | N | 5,000 | N |
| PCBs: Aroclor 1016 | 12674-11-2 | 6 | N | 50 | N |
| PCBs: Aroclor 1221 | 11104-28-2 | 3 | C | 8 | C |
| PCBs: Aroclor 1232 | 11141-16-5 | 2 | C | 7 | C |
| PCBs: Aroclor 1242 | 53469-21-9 | 3 | C | 10 | C |
| PCBs: Aroclor 1248 | 12672-29-6 | 3 | C | 9 | C |
| PCBs: Aroclor 1254 | 11097-69-1 | 2 | N | 10 | C |
| PCBs: Aroclor 1260 | 11096-82-5 | 3 | C | 10 | C |
| PCBs: Aroclor 5460 | 11126-42-4 | 50 | N | 400 | N |
| PCBs: Heptachlorobiphenyl, 2,3,3',4,4',5,5'- (PCB 189) | 39635-31-9 | 2 | C | 5 | C |
| PCBs: Hexachlorobiphenyl, 2,3,3',4,4',5- (PCB 156) | 38380-08-4 | 2 | C | 5 | C |
| PCBs: Hexachlorobiphenyl, 2,3,3',4,4',5'- (PCB 157) | 69782-90-7 | 2 | C | 5 | C |
| PCBs: Hexachlorobiphenyl, 2,3',4,4',5,5'- (PCB 167) | 52663-72-6 | 2 | C | 5 | C |
| PCBs: Hexachlorobiphenyl, 3,3',4,4',5,5'- (PCB 169) | 32774-16-6 | 0.002 | C | 0.005 | C |
| PCBs: Pentachlorobiphenyl, 2,3,3',4,4'- (PCB 105) | 32598-14-4 | 2 | C | 5 | C |
| PCBs: Pentachlorobiphenyl, 2,3,4,4',5- (PCB 114) | 74472-37-0 | 2 | C | 5 | C |
| PCBs: Pentachlorobiphenyl, 2,3',4,4',5- (PCB 118) | 31508-00-6 | 2 | C | 5 | C |
| PCBs: Pentachlorobiphenyl, 2',3,4,4',5- (PCB 123) | 65510-44-3 | 2 | C | 5 | C |
| PCBs: Pentachlorobiphenyl, 3,3',4,4',5- (PCB 126) | 57465-28-8 | 0.0005 | C | 0.002 | C |
| PCBs: Polychlorinated Biphenyls (high risk) | 1336-36-3 | 3 | C | 9 | C |
| PCBs: Tetrachlorobiphenyl, 3,3',4,4'- (PCB 77) | 32598-13-3 | 0.5 | C | 2 | C |
| PCBs: Tetrachlorobiphenyl, 3,4,4',5- (PCB 81) | 70362-50-4 | 0.2 | C | 0.5 | C |
| Pebulate | 1114-71-2 | 5,000 | N | 60,000 | N |
| Pendimethalin | 40487-42-1 | 30,000 | N | 100,000 | L |
| Permethrin | 52645-53-1 | 4,000 | N | 40,000 | N |
| Phenmedipham | 13684-63-4 | 20,000 | N | 100,000 | L |
| Phorate | 298-02-2 | 20 | N | 200 | N |
| Phosmet | 732-11-6 | 2,000 | N | 20,000 | N |
| Picloram | 1918-02-1 | 6,000 | N | 60,000 | N |
| Pirimiphos, Methyl | 29232-93-7 | 60 | N | 600 | N |
| Prochloraz | 67747-09-5 | 50 | C | 200 | C |
| Profluralin | 26399-36-0 | 700 | N | 7,000 | N |
| Prometon | 1610-18-0 | 1,000 | N | 10,000 | N |
| Prometryn | 7287-19-6 | 4,000 | N | 30,000 | N |
| Pronamide | 23950-58-5 | 7,000 | N | 60,000 | N |
| Propachlor | 1918-16-7 | 1,000 | N | 10,000 | N |
| Propanil | 709-98-8 | 400 | N | 4,000 | N |
| Propargite | 2312-35-8 | 40 | C | 100 | C |
| Propazine | 139-40-2 | 2,000 | N | 20,000 | N |
| Propham | 122-42-9 | 2,000 | N | 20,000 | N |
| Propiconazole | 60207-90-1 | 9,000 | N | 80,000 | N |
| Quinalphos | 13593-03-8 | 40 | N | 400 | N |
| Quizalofop-ethyl | 76578-14-8 | 800 | N | 7,000 | N |
| Resmethrin | 10453-86-8 | 3,000 | N | 30,000 | N |
| Ronnel | 299-84-3 | 5,000 | N | 60,000 | N |
| Rotenone | 83-79-4 | 400 | N | 3,000 | N |
| Sethoxydim | 74051-80-2 | 10,000 | N | 100,000 | L |
| Simazine | 122-34-9 | 60 | C | 200 | C |
| Sodium Acifluorfen | 62476-59-9 | 1,000 | N | 10,000 | N |
| Stirofos (Tetrachlorovinphos) | 961-11-5 | 300 | C | 1,000 | C |
| Strychnine | 57-24-9 | 30 | N | 300 | N |
| Tebuthiuron | 34014-18-1 | 6,000 | N | 60,000 | N |
| Temephos | 3383-96-8 | 2,000 | N | 20,000 | N |
| Terbacil | 5902-51-2 | 1,000 | N | 10,000 | N |
| Terbufos | 13071-79-9 | 3 | N | 30 | N |
| Terbutryn | 886-50-0 | 90 | N | 800 | N |
| Thifensulfuron-methyl | 79277-27-3 | 4,000 | N | 40,000 | N |
| Thiobencarb | 28249-77-6 | 900 | N | 8,000 | N |
| Thiofanox | 39196-18-4 | 30 | N | 300 | N |
| Thiophanate, Methyl | 23564-05-8 | 700 | C | 2,000 | C |
| Thiram | 137-26-8 | 1,000 | N | 10,000 | N |
| Toluene-2,4-diisocyanate | 584-84-9 | 9 | N | 30 | N |
| Toxaphene | 8001-35-2 | 7 | C | 20 | C |
| Toxaphene, Weathered | E1841606 | 3 | N | 30 | N |
| Tralomethrin | 66841-25-6 | 700 | N | 6,000 | N |
| Triadimefon | 43121-43-3 | 3,000 | N | 30,000 | N |
| Triallate | 2303-17-5 | 100 | C | 500 | C |
| Triasulfuron | 82097-50-5 | 900 | N | 8,000 | N |
| Tribenuron-methyl | 101200-48-0 | 700 | N | 7,000 | N |
| Tribufos | 78-48-8 | 20 | N | 200 | N |
| Trichlorophenoxyacetic Acid, 2,4,5- | 93-76-5 | 900 | N | 8,000 | N |
| Trichlorophenoxypropionic acid, -2,4,5 | 93-72-1 | 700 | N | 7,000 | N |
| Tridiphane | 58138-08-2 | 300 | N | 3,000 | N |
| Trifluralin | 1582-09-8 | 800 | N | 4,000 | C |
| Vernolate | 1929-77-7 | 100 | N | 1,000 | N |
| Vinclozolin | 50471-44-8 | 100 | N | 1,000 | N |
| Warfarin | 81-81-2 | 30 | N | 300 | N |
| Zineb | 12122-67-7 | 4,000 | N | 40,000 | N |
No results found.
Practical Notes
Legacy pesticides such as DDT, chlordane, dieldrin, and heptachlor were used extensively in Indiana agriculture and urban settings through the mid-20th century. They persist in soil for decades and are frequently encountered at former agricultural properties, orchards, wood treatment facilities, and older residential sites. These compounds are all carcinogens with low published levels.
PCBs in this table are listed as individual Aroclor formulations (Aroclor 1242, 1254, 1260, etc.). Most laboratory methods report PCBs as total Aroclors or as congener-specific results. Confirm with your laboratory which Aroclor formulations were analyzed and whether total PCBs or specific Aroclors should be compared to these standards.
Herbicides and fungicides make up a large portion of this table’s 219 chemicals. Many have relatively permissive published levels compared to the organochlorine pesticides. Current-use agricultural chemicals may be present at concentrations above published levels in soil adjacent to active agricultural operations.
Groundwater leaching: Legacy pesticides and PCBs are generally hydrophobic and bind tightly to soil organic matter, limiting leaching to groundwater. However, at high concentrations or on sandy, low-organic-matter soils, leaching can occur. Check the Indiana Groundwater - Pesticides and PCBs page for groundwater screening values.