1. (1) industrial water supplies after reasonable treatment;

   1. (i) maintenance of resident fish and other aquatic life;
   2. (ii) propagation of resident fish from RM 70.0 to RM 48.2;
   3. (iii) passage of anadromous fish;
   4. (iv) wildlife;

   (2)

2. (3) recreation; and

3. (4) navigation.

   (c) Stream quality objectives.

4. (1) Dissolved oxygen.

   1. (i) 24-hour average concentration shall not be less than:

      1. (a) 3.5 mg/l at RM 78.8;
      2. (b) 4.5 mg/l at RM 70.0; or
      3. (c) 6.0 mg/l at RM 59.5.
   2. (ii) During the periods from April 1st to June 15th, and September 16th to December 31st, the dissolved oxygen shall not have a seasonal average less than 6.5 mg/l in the entire zone.

5. (2) Temperature.

   1. (i) Shall not be raised above ambient by more than:

      1. (a) 4°F (2.2°C) during September through May; nor
      2. (b) 1.5°F (0.8°C) during June through August;
   2. (ii) nor shall maximum temperatures exceed 86°F (30.0°C). (See section 861.12[f][4] of this Title.)
6. (3) pH. Between 6.5 and 8.5 inclusive, unless outside this range due to natural conditions.
7. (4) Phenols. Maximum 0.01 mg/l, unless exceeded due to natural conditions.
8. (5) Threshold odor number. Not to exceed 24 at 60° C.
9. (6) Synthetic detergents (M.B.A.S.). Maximum 30-day average 1.0 mg/l.

10. (7) Radioactivity:

    1. (i) alpha emitters, maximum 3 pc/l (picocuries per liter); and
    2. (ii) beta emitters, maximum 1,000 pc/l.

11. (8) Bacteria.

    1. (i) Fecal Coliform. Maximum geometric average 200 per 100 milliliters.
    2. (ii) Enterococcus. Maximum geometric average 35 per 100 milliliters.

12. (9) Turbidity. Unless exceeded due to natural conditions:

    1. (i) maximum 30-day average 40 units; and
    2. (ii) maximum 150 units.
13. (10) Alkalinity. Between 20 and 120 mg/l.

14. (11) Toxic pollutants. Freshwater stream quality objectives apply in areas upstream of the Delaware Memorial bridges (River Mile 68.75), and the more stringent of the freshwater or marine stream quality objectives apply in areas below RM 68.75.

    1. (i) Applicable criteria to protect the taste and odor of ingested water and fish are presented in Tables 4 of this paragraph.
    2. (ii) Applicable freshwater and marine stream quality objectives to protect aquatic life are presented in Table 5 of this paragraph.

    3. (iii) Applicable freshwater and marine stream quality objectives to protect human health are presented in Tables 6 and 7 of this paragraph.

       TABLE 3

       MAXIMUM CONTAMINANT LEVELS TO BE APPLIED AS HUMAN HEALTH STREAM QUALITY OBJECTIVES IN ZONES 2 AND 3 OF THE DELAWARE RIVER ESTUARY

       Parameter	Maximum Contaminant Level (μg/l)
       Metals
       Arsenic	10
       Barium	2000
       Beryllium	4
       Chromium (trivalent)	100
       Copper	1300
       Lead	15
       Selenium	50
       Pesticides/PCBs
       alpha-BHC	0.2
       beta-BHC	0.2
       gamma - BHC (Lindane)	2
       2,4-Dichloro-phenoxyacetic acid (2,4-D)	70
       Methoxychor	40
       Toxaphene	3
       Dioxin (2,3,7,8-TCDD)	0.00003
       2,4,5 Trichloro-phenoxypropionic acid (2,4,5-TP-Silvex)	50
       Volatile Organic Compounds (VOCs)
       Benzene	5
       Carbon Tetrachloride	5
       1,2-Dichloroethane	5
       1,1-Dichloroethylene	7
       1,2-trans-Dichloroethylene	100
       Dichloromethane (methylene chloride)	5
       Tetrachloroethylene (PCE)	5
       Toluene	1000
       Total Trihalomethanes	80
       1,1,1-Trichloroethane	200
       1,1,2-Trichloroehtane	5
       Trichloroethylene	5
       Vinyl Chloride	2
       Polycyclic Aromatic Hydrocarbons (PAHs)
       Benzo(a)Pyrene	0.2
       Other Compounds
       Asbestos	7 million fibers/L
       Bis(2-Ethylhexyl) Phthalate	6
       Fluoride	4,000
       Nitrate	10,000
       Pentachlorophenol	1
       Dioxin (2,3,7, 8-TCDD)	0.00003

       TABLE 4

       CRITERIA TO PROTECT THE TASTE AND ODOR OF INGESTED WATER AND FISH TO BE APPLIED AS HUMAN HEALTH STREAM QUALITY OBJECTIVES IN ALL ZONES OF THE DELAWARE RIVER ESTUARY

       Parameter	Stream Quality Objective (μg/l)
       Phenol	300
       2- Chlorophenol	0.1
       2,4 - Dichlorophenol	0.3
       2,4 - Dimethylphenol	400
       4 - Chloro - 3 - methylphenol	3.0 mg/l
       Pentachlorophenol	30
       Acenaphthene	20
       Chlorobenzene	20
       Hexachlorocyclopentadiene	1.0
       Nitrobenzene	30

       TABLE 5

       STREAM QUALITY OBJECTIVES FOR TOXIC POLLUTANTS FOR THE PROTECTION OF AQUATIC LIFE IN THE DELAWARE RIVER ESTUARY AND BAY

       Freshwater Objectives (μg/l)
       Parameter	Acute	Chronic	Acute	Chronic
       Metals
       Aluminuma,b	750	87	NA	NA
       Arsenic (trivalent)	340	150	69	36
       Cadmiumc	0.651*EXP(1.0166*LN (hardness)-3.924)	0.651*EXP(0.7409*LN (hardness)-4.719)	40	8.8
       Chromium (trivalent)c	0.277*EXP(0.819*LN (hardness)+3.7256)	0.277*EXP(0.819*LN (hardness)+0.6848)	NA	NA
       Chromium (hexavalent)c	16	11	1,100	50
       Copperc	0.908*EXP(0.9422*LN (hardness)-1.7)	0.908*EXP(0.8545*LN (hardness)-1.702)	4.8	3.1
       Leadc	38	5.4	210	8.1
       Mercuryc	1.4	0.77	1.8	0.94
       Nickelc	0.846*EXP(0.846*LN (hardness)+2.255)	0.846*EXP(0.846*LN (hardness)+0.0584)	64	22
       Seleniuma	20	5.0	290	71
       Silverc	0.85*EXP(1.72*LN (hardness)-6.59)	NA	1.9	NA
       Zincc	0.95*EXP(0.8473*LN (hardness)+0.884)	0.95*EXP(0.8473*LN (hardness)+0.884)	90	81
       Pesticides/PCBs
       Aldrin	3	NA	1.3	NA
       gamma - BHC (Lindane)	0.95	NA	0.16	NA
       Chlordane	2.4	0.0043	0.09	0.004
       Chlorpyrifos (Dursban)	0.083	0.041	0.011	0.0056
       DDT and metabolites (DDE & DDD)d	1.1	0.001	0.13	0.001
       Dieldrin	0.24	0.056	0.71	0.0019
       Endosulfane	0.22	0.056	0.034	0.0087
       Endrin	0.086	0.036	0.037	0.0023
       Heptachlor	0.52	0.0038	0.053	0.0036
       Heptachlor Epoxide	0.52	0.0038	0.053	0.0036
       Parathion	0.065	0.013	NA	NA
       PCBs (Total)	1.0	0.014	5.0	0.03
       Toxaphene	0.73	0.0002	0.21	0.0002
       Other Compounds
       Cyanide (free)	22	5.2	1	1
       Pentachlorophenol	e(1.005*pH-4.83)	e(1.005*pH-5.29)	13	7.9
       Indicator Parameters
       Whole Effluent Toxicity	0.3 Toxic Unitsacute	1.0 Toxic Unitschronic	0.3 TUa	1.0 TUc

       _______

       ^a Total recoverable criteria.

       ^b Aluminum criteria listed are restricted to waters with pH between 6.5 and 9.0.

       ^c Dissolved criteria.

       ^d Criteria apply to DDT and its metabolites (i.e., the total concentration of DDT and its metabolites should not exceed this value).

       ^e Values were derived from data for endosulfan and are most appropriately applied to the sum of alpha-endosulfan and beta-endosulfan.

       Criteria for cadmium, chromium (trivalent), copper, nickel, silver and zinc are hardness-dependent and are expressed as the dissolved form (see section 3.10.3.C.2. on form of metal).

       TABLE 6

       STREAM QUALITY OBJECTIVES FOR CARCINOGENS FOR THE DELAWARE RIVER ESTUARY AND BAY

       Parameter	Freshwater Objectives (μg/l)	Marine Objectives (μg/l)
       	Fish & Water Ingestion	Fish Ingestion Only	Fish Ingestion Only
       Metals
       Arsenic	*	NA	NA
       Pesticides/PCBs
       Aldrin	0.000049	0.000050	0.000050
       alpha - BHC	0.0026	0.0049	0.0049
       beta-BHC	0.0091	0.017	0.017
       Chlordane	0.00080	0.00081	0.00081
       DDD	0.00031	0.00031	0.00031
       DDE	0.00022	0.00022	0.00022
       DDT	0.00022	0.00022	0.00022
       Dieldrin	0.000052	0.000054	0.000054
       Heptaclor	0.000079	0.000079	0.000079
       Heptaclor Epoxide	0.000039	0.000039	0.000039
       PCBs (Total)	0.000016	0.000016	0.000016
       Toxaphene	0.00028	0.00028	0.00028
       Volatile Organic Compounds (VOCs)
       Acrylonitrile	0.051	0.25	0.25
       Benzene	0.61	14	14
       Benzidine	0.000086	0.00020	0.00020
       Bromoform	4.3	140	140
       Bromodichloromethane	0.55	17	17
       Carbon Tetrachloride	0.23	1.6	1.6
       Chlorodibromomethane	0.40	13	13
       Chloroform	5.7	470	470
       3,3 - Dichlorobenzidine	0.021	0.028	0.028
       1,2 - Dichloroethane	.38	37	37
       1,2 - Dichloropropane	0.50	15	15
       1,3 - Dichloropropene	0.34	21	21
       Dichloromethane (Methylene chloride)	*	590	590
       Tetrachloroethylene	0.69	3.3	3.3
       1,1,2,2 - Tetrachloroethane	0.17	4.0	4.0
       1,1,2 - Trichloroethane	.059	16	16
       Trichloroethylene	2.5	30	30
       Vinyl Chloride	0.025	2.4	2.4
       Polycyclic Aromatic Hydrocarbons (PAHs)
       Benz[a]anthracene	0.0038	0.18	0.18
       Benzo[b]fluoranthene	0.038	0.18	0.18
       Benzo[k]fluoranthene	0.038	1.8	1.8
       Benzo[a]pyrene	0.0038	0.018	0.018
       Chrysene	3.8	18	18
       Dibenz[a,h]anthracene	0.0038	0.018	0.018
       Indeno[1,2,3-cd]pyrene	0.038	0.18	0.18
       Other Compounds
       Bis (2-chloroethyl) ether	0.03	0.53	0.53
       Bis (2-ethylhexyl) phthalate	1.2	2.2	2.2
       2,4 - Dinitrotoluene	0.11	3.4	3.4
       1,2 - Diphenylhydrazine	0.036	0.2	0.2
       Hexachlorobenzene	0.00028	0.00029	0.00029
       Hexachlorobutadiene	0.44	18	18
       Hexachloroethane	1.4	3.3	3.3
       Isophorone	35	960	960
       N-Nitrosodi-N-butylamine	0.0063	14	14
       N-Nitrosodi-N-methylamine	0.00069	3.0	3.0
       N-Nitrosodiethylamine	0.0008	1.24	1.24
       N-Nitrosodi-N-phenylamine	3.3	6	6
       N-Nitrosodi-N-propylamine	0.0050	0.51	0.51
       N-Nitrosopyrrolidine	0.016	34	34
       Pentachlorophenol	0.27	3.0	3.0
       Dioxin (2,3,7,8 - TCDD)	0.000000005	0.0000000051	0.0000000051
       2,4,6 - Trichlorophenol	1.4	2.4	2.4

       * The MCL for this compound applies in Zones 2 and 3 and is listed in Table 3.

       TABLE 7

       STREAM QUALITY OBJECTIVES FOR SYSTEMIC TOXICANTS FOR THE DELAWARE RIVER ESTUARY AND BAY

       Parameter	Freshwater Objectives (μg/l)	Marine Objectives (μg/l)
       	Fish & Water Ingestion	Fish Ingestion Only	Fish Ingestion Only
       Metals
       Antimony	5.6	640	640
       Arsenic	*	NA	NA
       Beryllium	*	420	420
       Cadmium	3.4	16	16
       Chromium (trivalent)	*	380,000	380,000
       Chromium (hexavalent)	92	NA	NA
       Chromium (Total)	NA	750	750
       Mercury	0.050	0.051	0.051
       Methylmercury	0.3 mg/kg fish tissue	0.3 mg/kg fish tissue	0.3 mg/kg fish tissue
       Nickel	500	1,700	1,700
       Selenium	170	4,200	4,200
       Silver	170	40,000	40,000
       Thallium	0.24	0.47	0.47
       Zinc	7,400	26,000	26,000
       Pesticides/PCBs
       Aldrin	0.025	0.025	0.025
       gamma - BHC (Lindane)	0.98	1.8	1.8
       Chlordane	0.14	0.14	0.14
       DDT and Metabolites (DDD and DDE)	0.037	0.037	0.037
       Dieldrin	0.041	0.043	0.043
       alpha-Endosulfan	62	89	89
       beta-Endosulfan	62	89	89
       Endosulfan Sulfate	62	89	89
       Endrin	0.059	0.060	0.060
       Endrin Aldehyde	0.29	0.30	0.30
       Heptaclor	0.18	0.18	0.18
       Heptaclor Epoxide	0.0046	0.0046	0.0046
       (Total) PCBs	0.00839	0.00849	0.00149
       Volatile Organic Compounds (VOCs)
       Acrolein	6.1	9.3	9.3
       Benzene	*	3,100	3,100
       Bromoform	650	9,600	9,600
       Bromodichloromethane	680	NA	NA
       Dibromochloromethane	680	21,000	21,000
       Carbon Tetrachloride	*	150	150
       Chloroform	68	2,100	2,100
       Chlorobenzene	130	1,600	1,600
       1,1 - Dichloroethylene	*	7,100	7,100
       1,2 - trans - Dichloroethylene	140	10,000	10,000
       1,3 - Dichloropropene	1,000	63,000	63,000
       Ethylbenzene	530	2,100	2,100
       Methyl Bromide	47	1,500	1,500
       Methylene Chloride	*	260,000	260,000
       1,1,2 - Trichloroethane	*	3,600	3,600
       Tetrachloroethylene	*	1,300	1,300
       Toluene	1,300	15,000	15,000
       Polycyclic Aromatic Hydrocarbons (PAHs)
       Anthracene	8,300	40,000	40,000
       Fluoranthene	130	140	140
       Fluorene	1,100	5,300	5,300
       Pyrene	830	4,000	4,000
       Other Compounds
       Acenaphthene	670	990	990
       Benzidine	59	140	140
       Bis (2-chloroethyl) ether	1,400	65,000	65,000
       Bis (2-ethylhexyl) phthalate	*	620	620
       Butylbenzyl phthalate	1,500	1,900	1,900
       2 - Chloronaphthalene	1,000	1,600	1,600
       2 - Chlorophenol	81	150	150
       Cyanide	140	140	140
       Dibutyl Phthalate	2,000	4,500	4,500
       1,2 - Dichlorobenzene	420	1,300	1,300
       1,3 - Dichlorobenzene	420	1,300	1,300
       1,4 - Dichlorobenzene	63	190	190
       2,4 - Dichlorophenol	77	290	290
       Diethyl Phthalate	17,000	44,000	44,000
       Dimethyl Phthalate	270,000	1,100,000	1,100,000
       2,4 - Dimethylphenol	380	850	850
       2,4 - Dinitrophenol	69	5,300	5,300
       2,4 - Dinitrotoluene	68	2,100	2,100
       Hexachlorobenzene	0.35	0.36	0.36
       Hexachlorocyclopentadiene	40	1,100	1,100
       Hexacchloroethane	20	46	46
       Isophorone	6,700	180,000	180,000
       2-Methyl-4,6-dinitrophenol	13	280	280
       Nitrobenzene	17	690	690
       Pentachlorobenzene	1.4	1.5	1.5
       Pentachlorophenol	*	11,000	11,000
       Phenol	10,000	860,000	860,000
       1,2,4,5-Tetrachlorobenzene	0.97	1.1	1.1
       1,2,4-Trichlorobenzene	35	70	70
       2,4,5-Trichlorophenol	1,800	3,600	3,600
       Vinyl Chloride	*	10,000	10,000

       *The MCL for this compound applies in Zones 2 and 3 and is listed in Table 3.

       (d) Effluent quality requirements.

15. (1) All discharges shall meet the effluent quality requirements of this Part.
16. (2) The carbonaceous oxygen demand from all outfalls in the zone (exclusive of storm water bypass) shall not exceed that assigned by commission regulations.

(a) Description.

Zone 5 is that part of the Delaware River extending from RM 78.8 to RM 48.2, Liston Point, including the tidal portions of the tributaries thereof.

(b) Water uses to be protected.

The quality of zone 5 waters shall be maintained in a safe and satisfactory condition for the following uses: